Table Data - Index of Yields of High Grade Municipal Bonds for United States
| Title | Index of Yields of High Grade Municipal Bonds for United States |
|---|---|
| Series ID | M13023USM156NNBR |
| Source | National Bureau of Economic Research |
| Release | NBER Macrohistory Database (Not a Press Release) |
| Seasonal Adjustment | Not Seasonally Adjusted |
| Frequency | Monthly |
| Units | Percent |
| Date Range | 1900-01-01 to 1967-04-01 |
| Last Updated | 2012-08-20 8:18 AM CDT |
| Notes |
| DATE | VALUE |
|---|---|
| 1900-01-01 | 3.12 |
| 1900-02-01 | 3.13 |
| 1900-03-01 | 3.12 |
| 1900-04-01 | 3.11 |
| 1900-05-01 | 3.11 |
| 1900-06-01 | 3.11 |
| 1900-07-01 | 3.13 |
| 1900-08-01 | 3.13 |
| 1900-09-01 | 3.13 |
| 1900-10-01 | 3.13 |
| 1900-11-01 | 3.12 |
| 1900-12-01 | 3.08 |
| 1901-01-01 | 3.09 |
| 1901-02-01 | 3.08 |
| 1901-03-01 | 3.09 |
| 1901-04-01 | 3.09 |
| 1901-05-01 | 3.10 |
| 1901-06-01 | 3.10 |
| 1901-07-01 | 3.15 |
| 1901-08-01 | 3.17 |
| 1901-09-01 | 3.19 |
| 1901-10-01 | 3.19 |
| 1901-11-01 | 3.17 |
| 1901-12-01 | 3.17 |
| 1902-01-01 | 3.17 |
| 1902-02-01 | 3.18 |
| 1902-03-01 | 3.19 |
| 1902-04-01 | 3.15 |
| 1902-05-01 | 3.15 |
| 1902-06-01 | 3.19 |
| 1902-07-01 | 3.21 |
| 1902-08-01 | 3.20 |
| 1902-09-01 | 3.21 |
| 1902-10-01 | 3.21 |
| 1902-11-01 | 3.25 |
| 1902-12-01 | 3.25 |
| 1903-01-01 | 3.26 |
| 1903-02-01 | 3.26 |
| 1903-03-01 | 3.29 |
| 1903-04-01 | 3.30 |
| 1903-05-01 | 3.31 |
| 1903-06-01 | 3.36 |
| 1903-07-01 | 3.40 |
| 1903-08-01 | 3.47 |
| 1903-09-01 | 3.49 |
| 1903-10-01 | 3.49 |
| 1903-11-01 | 3.49 |
| 1903-12-01 | 3.48 |
| 1904-01-01 | 3.48 |
| 1904-02-01 | 3.49 |
| 1904-03-01 | 3.52 |
| 1904-04-01 | 3.51 |
| 1904-05-01 | 3.49 |
| 1904-06-01 | 3.48 |
| 1904-07-01 | 3.42 |
| 1904-08-01 | 3.40 |
| 1904-09-01 | 3.40 |
| 1904-10-01 | 3.39 |
| 1904-11-01 | 3.39 |
| 1904-12-01 | 3.38 |
| 1905-01-01 | 3.38 |
| 1905-02-01 | 3.38 |
| 1905-03-01 | 3.37 |
| 1905-04-01 | 3.37 |
| 1905-05-01 | 3.38 |
| 1905-06-01 | 3.41 |
| 1905-07-01 | 3.41 |
| 1905-08-01 | 3.41 |
| 1905-09-01 | 3.40 |
| 1905-10-01 | 3.41 |
| 1905-11-01 | 3.43 |
| 1905-12-01 | 3.44 |
| 1906-01-01 | 3.44 |
| 1906-02-01 | 3.45 |
| 1906-03-01 | 3.48 |
| 1906-04-01 | 3.47 |
| 1906-05-01 | 3.51 |
| 1906-06-01 | 3.54 |
| 1906-07-01 | 3.57 |
| 1906-08-01 | 3.64 |
| 1906-09-01 | 3.70 |
| 1906-10-01 | 3.69 |
| 1906-11-01 | 3.67 |
| 1906-12-01 | 3.67 |
| 1907-01-01 | 3.68 |
| 1907-02-01 | 3.70 |
| 1907-03-01 | 3.73 |
| 1907-04-01 | 3.72 |
| 1907-05-01 | 3.76 |
| 1907-06-01 | 3.80 |
| 1907-07-01 | 3.80 |
| 1907-08-01 | 3.86 |
| 1907-09-01 | 3.93 |
| 1907-10-01 | 4.00 |
| 1907-11-01 | 4.11 |
| 1907-12-01 | 4.17 |
| 1908-01-01 | 4.17 |
| 1908-02-01 | 4.00 |
| 1908-03-01 | 3.97 |
| 1908-04-01 | 3.98 |
| 1908-05-01 | 3.95 |
| 1908-06-01 | 3.90 |
| 1908-07-01 | 3.93 |
| 1908-08-01 | 3.91 |
| 1908-09-01 | 3.89 |
| 1908-10-01 | 3.86 |
| 1908-11-01 | 3.82 |
| 1908-12-01 | 3.79 |
| 1909-01-01 | 3.75 |
| 1909-02-01 | 3.73 |
| 1909-03-01 | 3.72 |
| 1909-04-01 | 3.74 |
| 1909-05-01 | 3.75 |
| 1909-06-01 | 3.77 |
| 1909-07-01 | 3.78 |
| 1909-08-01 | 3.80 |
| 1909-09-01 | 3.79 |
| 1909-10-01 | 3.82 |
| 1909-11-01 | 3.83 |
| 1909-12-01 | 3.85 |
| 1910-01-01 | 3.87 |
| 1910-02-01 | 3.88 |
| 1910-03-01 | 3.91 |
| 1910-04-01 | 3.93 |
| 1910-05-01 | 3.97 |
| 1910-06-01 | 3.99 |
| 1910-07-01 | 4.04 |
| 1910-08-01 | 4.03 |
| 1910-09-01 | 4.02 |
| 1910-10-01 | 4.00 |
| 1910-11-01 | 3.97 |
| 1910-12-01 | 4.01 |
| 1911-01-01 | 3.99 |
| 1911-02-01 | 3.99 |
| 1911-03-01 | 3.98 |
| 1911-04-01 | 3.97 |
| 1911-05-01 | 3.96 |
| 1911-06-01 | 3.96 |
| 1911-07-01 | 3.97 |
| 1911-08-01 | 3.97 |
| 1911-09-01 | 4.00 |
| 1911-10-01 | 4.00 |
| 1911-11-01 | 4.01 |
| 1911-12-01 | 4.00 |
| 1912-01-01 | 4.00 |
| 1912-02-01 | 3.99 |
| 1912-03-01 | 4.00 |
| 1912-04-01 | 4.01 |
| 1912-05-01 | 4.01 |
| 1912-06-01 | 4.02 |
| 1912-07-01 | 4.01 |
| 1912-08-01 | 4.01 |
| 1912-09-01 | 4.03 |
| 1912-10-01 | 4.04 |
| 1912-11-01 | 4.08 |
| 1912-12-01 | 4.09 |
| 1913-01-01 | 4.09 |
| 1913-02-01 | 4.08 |
| 1913-03-01 | 4.12 |
| 1913-04-01 | 4.16 |
| 1913-05-01 | 4.20 |
| 1913-06-01 | 4.25 |
| 1913-07-01 | 4.35 |
| 1913-08-01 | 4.32 |
| 1913-09-01 | 4.36 |
| 1913-10-01 | 4.30 |
| 1913-11-01 | 4.21 |
| 1913-12-01 | 4.23 |
| 1914-01-01 | 4.17 |
| 1914-02-01 | 4.17 |
| 1914-03-01 | 4.11 |
| 1914-04-01 | 4.10 |
| 1914-05-01 | 4.10 |
| 1914-06-01 | 4.09 |
| 1914-07-01 | 4.10 |
| 1914-08-01 | . |
| 1914-09-01 | . |
| 1914-10-01 | . |
| 1914-11-01 | . |
| 1914-12-01 | . |
| 1915-01-01 | 4.15 |
| 1915-02-01 | 4.14 |
| 1915-03-01 | 4.13 |
| 1915-04-01 | 4.14 |
| 1915-05-01 | 4.22 |
| 1915-06-01 | 4.21 |
| 1915-07-01 | 4.23 |
| 1915-08-01 | 4.23 |
| 1915-09-01 | 4.19 |
| 1915-10-01 | 4.18 |
| 1915-11-01 | 4.08 |
| 1915-12-01 | 4.02 |
| 1916-01-01 | 3.99 |
| 1916-02-01 | 3.96 |
| 1916-03-01 | 3.95 |
| 1916-04-01 | 3.96 |
| 1916-05-01 | 3.97 |
| 1916-06-01 | 3.97 |
| 1916-07-01 | 3.97 |
| 1916-08-01 | 3.96 |
| 1916-09-01 | 3.95 |
| 1916-10-01 | 3.90 |
| 1916-11-01 | 3.85 |
| 1916-12-01 | 3.84 |
| 1917-01-01 | 3.82 |
| 1917-02-01 | 3.90 |
| 1917-03-01 | 3.94 |
| 1917-04-01 | 4.08 |
| 1917-05-01 | 4.15 |
| 1917-06-01 | 4.26 |
| 1917-07-01 | 4.29 |
| 1917-08-01 | 4.32 |
| 1917-09-01 | 4.38 |
| 1917-10-01 | 4.35 |
| 1917-11-01 | 4.44 |
| 1917-12-01 | 4.51 |
| 1918-01-01 | 4.52 |
| 1918-02-01 | 4.48 |
| 1918-03-01 | 4.54 |
| 1918-04-01 | 4.59 |
| 1918-05-01 | 4.58 |
| 1918-06-01 | 4.52 |
| 1918-07-01 | 4.47 |
| 1918-08-01 | 4.51 |
| 1918-09-01 | 4.53 |
| 1918-10-01 | 4.53 |
| 1918-11-01 | 4.37 |
| 1918-12-01 | 4.36 |
| 1919-01-01 | 4.43 |
| 1919-02-01 | 4.46 |
| 1919-03-01 | 4.53 |
| 1919-04-01 | 4.52 |
| 1919-05-01 | 4.47 |
| 1919-06-01 | 4.44 |
| 1919-07-01 | 4.44 |
| 1919-08-01 | 4.45 |
| 1919-09-01 | 4.44 |
| 1919-10-01 | 4.45 |
| 1919-11-01 | 4.45 |
| 1919-12-01 | 4.47 |
| 1920-01-01 | 4.53 |
| 1920-02-01 | 4.62 |
| 1920-03-01 | 4.62 |
| 1920-04-01 | 4.83 |
| 1920-05-01 | 5.03 |
| 1920-06-01 | 5.23 |
| 1920-07-01 | 5.25 |
| 1920-08-01 | 5.28 |
| 1920-09-01 | 5.22 |
| 1920-10-01 | 5.06 |
| 1920-11-01 | 5.02 |
| 1920-12-01 | 5.10 |
| 1921-01-01 | 5.05 |
| 1921-02-01 | 5.12 |
| 1921-03-01 | 5.11 |
| 1921-04-01 | 5.12 |
| 1921-05-01 | 5.12 |
| 1921-06-01 | 5.27 |
| 1921-07-01 | 5.34 |
| 1921-08-01 | 5.25 |
| 1921-09-01 | 5.14 |
| 1921-10-01 | 5.07 |
| 1921-11-01 | 4.93 |
| 1921-12-01 | 4.52 |
| 1922-01-01 | 4.43 |
| 1922-02-01 | 4.43 |
| 1922-03-01 | 4.37 |
| 1922-04-01 | 4.20 |
| 1922-05-01 | 4.17 |
| 1922-06-01 | 4.18 |
| 1922-07-01 | 4.21 |
| 1922-08-01 | 4.18 |
| 1922-09-01 | 4.11 |
| 1922-10-01 | 4.14 |
| 1922-11-01 | 4.20 |
| 1922-12-01 | 4.15 |
| 1923-01-01 | 4.13 |
| 1923-02-01 | 4.12 |
| 1923-03-01 | 4.15 |
| 1923-04-01 | 4.18 |
| 1923-05-01 | 4.20 |
| 1923-06-01 | 4.21 |
| 1923-07-01 | 4.31 |
| 1923-08-01 | 4.33 |
| 1923-09-01 | 4.36 |
| 1923-10-01 | 4.34 |
| 1923-11-01 | 4.32 |
| 1923-12-01 | 4.35 |
| 1924-01-01 | 4.31 |
| 1924-02-01 | 4.31 |
| 1924-03-01 | 4.31 |
| 1924-04-01 | 4.30 |
| 1924-05-01 | 4.23 |
| 1924-06-01 | 4.19 |
| 1924-07-01 | 4.16 |
| 1924-08-01 | 4.15 |
| 1924-09-01 | 4.08 |
| 1924-10-01 | 4.10 |
| 1924-11-01 | 4.09 |
| 1924-12-01 | 4.12 |
| 1925-01-01 | 4.10 |
| 1925-02-01 | 4.08 |
| 1925-03-01 | 4.07 |
| 1925-04-01 | 4.05 |
| 1925-05-01 | 4.02 |
| 1925-06-01 | 4.01 |
| 1925-07-01 | 4.06 |
| 1925-08-01 | 4.03 |
| 1925-09-01 | 4.12 |
| 1925-10-01 | 4.15 |
| 1925-11-01 | 4.22 |
| 1925-12-01 | 4.13 |
| 1926-01-01 | 4.10 |
| 1926-02-01 | 4.09 |
| 1926-03-01 | 4.09 |
| 1926-04-01 | 4.07 |
| 1926-05-01 | 4.06 |
| 1926-06-01 | 4.06 |
| 1926-07-01 | 4.06 |
| 1926-08-01 | 4.04 |
| 1926-09-01 | 4.08 |
| 1926-10-01 | 4.09 |
| 1926-11-01 | 4.09 |
| 1926-12-01 | 4.07 |
| 1927-01-01 | 4.04 |
| 1927-02-01 | 4.04 |
| 1927-03-01 | 4.00 |
| 1927-04-01 | 3.96 |
| 1927-05-01 | 3.94 |
| 1927-06-01 | 4.00 |
| 1927-07-01 | 4.02 |
| 1927-08-01 | 4.00 |
| 1927-09-01 | 3.96 |
| 1927-10-01 | 3.93 |
| 1927-11-01 | 3.93 |
| 1927-12-01 | 3.90 |
| 1928-01-01 | 3.89 |
| 1928-02-01 | 3.89 |
| 1928-03-01 | 3.89 |
| 1928-04-01 | 3.93 |
| 1928-05-01 | 4.02 |
| 1928-06-01 | 4.09 |
| 1928-07-01 | 4.13 |
| 1928-08-01 | 4.16 |
| 1928-09-01 | 4.17 |
| 1928-10-01 | 4.17 |
| 1928-11-01 | 4.15 |
| 1928-12-01 | 4.15 |
| 1929-01-01 | 4.16 |
| 1929-02-01 | 4.25 |
| 1929-03-01 | 4.32 |
| 1929-04-01 | 4.29 |
| 1929-05-01 | 4.23 |
| 1929-06-01 | 4.26 |
| 1929-07-01 | 4.28 |
| 1929-08-01 | 4.31 |
| 1929-09-01 | 4.32 |
| 1929-10-01 | 4.29 |
| 1929-11-01 | 4.25 |
| 1929-12-01 | 4.22 |
| 1930-01-01 | 4.22 |
| 1930-02-01 | 4.24 |
| 1930-03-01 | 4.12 |
| 1930-04-01 | 4.11 |
| 1930-05-01 | 4.11 |
| 1930-06-01 | 4.10 |
| 1930-07-01 | 4.05 |
| 1930-08-01 | 3.97 |
| 1930-09-01 | 3.97 |
| 1930-10-01 | 3.94 |
| 1930-11-01 | 4.00 |
| 1930-12-01 | 4.05 |
| 1931-01-01 | 3.92 |
| 1931-02-01 | 3.95 |
| 1931-03-01 | 3.89 |
| 1931-04-01 | 3.80 |
| 1931-05-01 | 3.75 |
| 1931-06-01 | 3.76 |
| 1931-07-01 | 3.85 |
| 1931-08-01 | 3.83 |
| 1931-09-01 | 3.91 |
| 1931-10-01 | 4.35 |
| 1931-11-01 | 4.42 |
| 1931-12-01 | 4.64 |
| 1932-01-01 | 4.92 |
| 1932-02-01 | 5.03 |
| 1932-03-01 | 4.79 |
| 1932-04-01 | 4.73 |
| 1932-05-01 | 4.77 |
| 1932-06-01 | 4.81 |
| 1932-07-01 | 4.78 |
| 1932-08-01 | 4.50 |
| 1932-09-01 | 4.39 |
| 1932-10-01 | 4.37 |
| 1932-11-01 | 4.38 |
| 1932-12-01 | 4.37 |
| 1933-01-01 | 4.23 |
| 1933-02-01 | 4.28 |
| 1933-03-01 | 4.88 |
| 1933-04-01 | 5.05 |
| 1933-05-01 | 5.27 |
| 1933-06-01 | 4.71 |
| 1933-07-01 | 4.60 |
| 1933-08-01 | 4.54 |
| 1933-09-01 | 4.59 |
| 1933-10-01 | 4.60 |
| 1933-11-01 | 4.89 |
| 1933-12-01 | 4.89 |
| 1934-01-01 | 4.67 |
| 1934-02-01 | 4.48 |
| 1934-03-01 | 4.23 |
| 1934-04-01 | 4.12 |
| 1934-05-01 | 4.00 |
| 1934-06-01 | 3.88 |
| 1934-07-01 | 3.85 |
| 1934-08-01 | 3.88 |
| 1934-09-01 | 3.94 |
| 1934-10-01 | 3.84 |
| 1934-11-01 | 3.78 |
| 1934-12-01 | 3.69 |
| 1935-01-01 | 3.57 |
| 1935-02-01 | 3.41 |
| 1935-03-01 | 3.41 |
| 1935-04-01 | 3.40 |
| 1935-05-01 | 3.43 |
| 1935-06-01 | 3.42 |
| 1935-07-01 | 3.32 |
| 1935-08-01 | 3.35 |
| 1935-09-01 | 3.44 |
| 1935-10-01 | 3.45 |
| 1935-11-01 | 3.34 |
| 1935-12-01 | 3.31 |
| 1936-01-01 | 3.27 |
| 1936-02-01 | 3.22 |
| 1936-03-01 | 3.18 |
| 1936-04-01 | 3.17 |
| 1936-05-01 | 3.16 |
| 1936-06-01 | 3.16 |
| 1936-07-01 | 3.13 |
| 1936-08-01 | 3.06 |
| 1936-09-01 | 2.97 |
| 1936-10-01 | 2.94 |
| 1936-11-01 | 2.85 |
| 1936-12-01 | 2.76 |
| 1937-01-01 | 2.79 |
| 1937-02-01 | 2.96 |
| 1937-03-01 | 3.19 |
| 1937-04-01 | 3.24 |
| 1937-05-01 | 3.14 |
| 1937-06-01 | 3.11 |
| 1937-07-01 | 3.07 |
| 1937-08-01 | 3.01 |
| 1937-09-01 | 3.18 |
| 1937-10-01 | 3.24 |
| 1937-11-01 | 3.17 |
| 1937-12-01 | 3.15 |
| 1938-01-01 | 3.03 |
| 1938-02-01 | 2.99 |
| 1938-03-01 | 2.99 |
| 1938-04-01 | 3.03 |
| 1938-05-01 | 2.91 |
| 1938-06-01 | 2.91 |
| 1938-07-01 | 2.87 |
| 1938-08-01 | 2.82 |
| 1938-09-01 | 3.02 |
| 1938-10-01 | 2.82 |
| 1938-11-01 | 2.74 |
| 1938-12-01 | 2.75 |
| 1939-01-01 | 2.70 |
| 1939-02-01 | 2.70 |
| 1939-03-01 | 2.67 |
| 1939-04-01 | 2.75 |
| 1939-05-01 | 2.66 |
| 1939-06-01 | 2.63 |
| 1939-07-01 | 2.65 |
| 1939-08-01 | 2.75 |
| 1939-09-01 | 3.29 |
| 1939-10-01 | 3.08 |
| 1939-11-01 | 2.69 |
| 1939-12-01 | 2.56 |
| 1940-01-01 | 2.54 |
| 1940-02-01 | 2.60 |
| 1940-03-01 | 2.58 |
| 1940-04-01 | 2.56 |
| 1940-05-01 | 2.81 |
| 1940-06-01 | 2.85 |
| 1940-07-01 | 2.54 |
| 1940-08-01 | 2.49 |
| 1940-09-01 | 2.44 |
| 1940-10-01 | 2.32 |
| 1940-11-01 | 2.18 |
| 1940-12-01 | 2.07 |
| 1941-01-01 | 2.16 |
| 1941-02-01 | 2.27 |
| 1941-03-01 | 2.28 |
| 1941-04-01 | 2.20 |
| 1941-05-01 | 2.14 |
| 1941-06-01 | 2.08 |
| 1941-07-01 | 2.03 |
| 1941-08-01 | 2.00 |
| 1941-09-01 | 1.99 |
| 1941-10-01 | 1.91 |
| 1941-11-01 | 1.90 |
| 1941-12-01 | 2.25 |
| 1942-01-01 | 2.33 |
| 1942-02-01 | 2.55 |
| 1942-03-01 | 2.58 |
| 1942-04-01 | 2.44 |
| 1942-05-01 | 2.45 |
| 1942-06-01 | 2.38 |
| 1942-07-01 | 2.32 |
| 1942-08-01 | 2.28 |
| 1942-09-01 | 2.25 |
| 1942-10-01 | 2.22 |
| 1942-11-01 | 2.20 |
| 1942-12-01 | 2.26 |
| 1943-01-01 | 2.27 |
| 1943-02-01 | 2.22 |
| 1943-03-01 | 2.21 |
| 1943-04-01 | 2.20 |
| 1943-05-01 | 2.13 |
| 1943-06-01 | 2.07 |
| 1943-07-01 | 1.97 |
| 1943-08-01 | 1.91 |
| 1943-09-01 | 1.92 |
| 1943-10-01 | 1.88 |
| 1943-11-01 | 1.90 |
| 1943-12-01 | 2.00 |
| 1944-01-01 | 1.92 |
| 1944-02-01 | 1.85 |
| 1944-03-01 | 1.84 |
| 1944-04-01 | 1.85 |
| 1944-05-01 | 1.86 |
| 1944-06-01 | 1.87 |
| 1944-07-01 | 1.84 |
| 1944-08-01 | 1.82 |
| 1944-09-01 | 1.83 |
| 1944-10-01 | 1.87 |
| 1944-11-01 | 1.88 |
| 1944-12-01 | 1.87 |
| 1945-01-01 | 1.81 |
| 1945-02-01 | 1.71 |
| 1945-03-01 | 1.61 |
| 1945-04-01 | 1.57 |
| 1945-05-01 | 1.58 |
| 1945-06-01 | 1.58 |
| 1945-07-01 | 1.57 |
| 1945-08-01 | 1.70 |
| 1945-09-01 | 1.79 |
| 1945-10-01 | 1.76 |
| 1945-11-01 | 1.70 |
| 1945-12-01 | 1.64 |
| 1946-01-01 | 1.57 |
| 1946-02-01 | 1.49 |
| 1946-03-01 | 1.49 |
| 1946-04-01 | 1.45 |
| 1946-05-01 | 1.54 |
| 1946-06-01 | 1.55 |
| 1946-07-01 | 1.60 |
| 1946-08-01 | 1.65 |
| 1946-09-01 | 1.75 |
| 1946-10-01 | 1.84 |
| 1946-11-01 | 1.80 |
| 1946-12-01 | 1.97 |
| 1947-01-01 | 1.92 |
| 1947-02-01 | 1.99 |
| 1947-03-01 | 2.02 |
| 1947-04-01 | 1.98 |
| 1947-05-01 | 1.95 |
| 1947-06-01 | 1.92 |
| 1947-07-01 | 1.91 |
| 1947-08-01 | 1.93 |
| 1947-09-01 | 1.92 |
| 1947-10-01 | 2.02 |
| 1947-11-01 | 2.18 |
| 1947-12-01 | 2.35 |
| 1948-01-01 | 2.45 |
| 1948-02-01 | 2.55 |
| 1948-03-01 | 2.52 |
| 1948-04-01 | 2.38 |
| 1948-05-01 | 2.31 |
| 1948-06-01 | 2.26 |
| 1948-07-01 | 2.33 |
| 1948-08-01 | 2.45 |
| 1948-09-01 | 2.46 |
| 1948-10-01 | 2.45 |
| 1948-11-01 | 2.42 |
| 1948-12-01 | 2.26 |
| 1949-01-01 | 2.15 |
| 1949-02-01 | 2.23 |
| 1949-03-01 | 2.21 |
| 1949-04-01 | 2.20 |
| 1949-05-01 | 2.20 |
| 1949-06-01 | 2.28 |
| 1949-07-01 | 2.26 |
| 1949-08-01 | 2.20 |
| 1949-09-01 | 2.22 |
| 1949-10-01 | 2.21 |
| 1949-11-01 | 2.17 |
| 1949-12-01 | 2.13 |
| 1950-01-01 | 2.08 |
| 1950-02-01 | 2.06 |
| 1950-03-01 | 2.07 |
| 1950-04-01 | 2.08 |
| 1950-05-01 | 2.07 |
| 1950-06-01 | 2.09 |
| 1950-07-01 | 2.09 |
| 1950-08-01 | 1.90 |
| 1950-09-01 | 1.88 |
| 1950-10-01 | 1.82 |
| 1950-11-01 | 1.79 |
| 1950-12-01 | 1.77 |
| 1951-01-01 | 1.62 |
| 1951-02-01 | 1.61 |
| 1951-03-01 | 1.87 |
| 1951-04-01 | 2.05 |
| 1951-05-01 | 2.09 |
| 1951-06-01 | 2.22 |
| 1951-07-01 | 2.18 |
| 1951-08-01 | 2.04 |
| 1951-09-01 | 2.05 |
| 1951-10-01 | 2.08 |
| 1951-11-01 | 2.07 |
| 1951-12-01 | 2.10 |
| 1952-01-01 | 2.10 |
| 1952-02-01 | 2.04 |
| 1952-03-01 | 2.07 |
| 1952-04-01 | 2.01 |
| 1952-05-01 | 2.05 |
| 1952-06-01 | 2.10 |
| 1952-07-01 | 2.12 |
| 1952-08-01 | 2.22 |
| 1952-09-01 | 2.33 |
| 1952-10-01 | 2.42 |
| 1952-11-01 | 2.40 |
| 1952-12-01 | 2.40 |
| 1953-01-01 | 2.47 |
| 1953-02-01 | 2.54 |
| 1953-03-01 | 2.61 |
| 1953-04-01 | 2.63 |
| 1953-05-01 | 2.73 |
| 1953-06-01 | 2.99 |
| 1953-07-01 | 2.99 |
| 1953-08-01 | 2.89 |
| 1953-09-01 | 2.88 |
| 1953-10-01 | 2.72 |
| 1953-11-01 | 2.62 |
| 1953-12-01 | 2.59 |
| 1954-01-01 | 2.50 |
| 1954-02-01 | 2.39 |
| 1954-03-01 | 2.38 |
| 1954-04-01 | 2.47 |
| 1954-05-01 | 2.49 |
| 1954-06-01 | 2.48 |
| 1954-07-01 | 2.31 |
| 1954-08-01 | 2.23 |
| 1954-09-01 | 2.29 |
| 1954-10-01 | 2.32 |
| 1954-11-01 | 2.29 |
| 1954-12-01 | 2.33 |
| 1955-01-01 | 2.39 |
| 1955-02-01 | 2.42 |
| 1955-03-01 | 2.45 |
| 1955-04-01 | 2.43 |
| 1955-05-01 | 2.41 |
| 1955-06-01 | 2.48 |
| 1955-07-01 | 2.62 |
| 1955-08-01 | 2.67 |
| 1955-09-01 | 2.63 |
| 1955-10-01 | 2.56 |
| 1955-11-01 | 2.55 |
| 1955-12-01 | 2.71 |
| 1956-01-01 | 2.64 |
| 1956-02-01 | 2.58 |
| 1956-03-01 | 2.69 |
| 1956-04-01 | 2.88 |
| 1956-05-01 | 2.86 |
| 1956-06-01 | 2.75 |
| 1956-07-01 | 2.78 |
| 1956-08-01 | 2.94 |
| 1956-09-01 | 3.07 |
| 1956-10-01 | 3.14 |
| 1956-11-01 | 3.38 |
| 1956-12-01 | 3.44 |
| 1957-01-01 | 3.40 |
| 1957-02-01 | 3.26 |
| 1957-03-01 | 3.32 |
| 1957-04-01 | 3.33 |
| 1957-05-01 | 3.52 |
| 1957-06-01 | 3.75 |
| 1957-07-01 | 3.75 |
| 1957-08-01 | 3.91 |
| 1957-09-01 | 3.90 |
| 1957-10-01 | 3.79 |
| 1957-11-01 | 3.76 |
| 1957-12-01 | 3.47 |
| 1958-01-01 | 3.32 |
| 1958-02-01 | 3.37 |
| 1958-03-01 | 3.45 |
| 1958-04-01 | 3.31 |
| 1958-05-01 | 3.25 |
| 1958-06-01 | 3.26 |
| 1958-07-01 | 3.45 |
| 1958-08-01 | 3.74 |
| 1958-09-01 | 3.96 |
| 1958-10-01 | 3.94 |
| 1958-11-01 | 3.84 |
| 1958-12-01 | 3.84 |
| 1959-01-01 | 3.87 |
| 1959-02-01 | 3.85 |
| 1959-03-01 | 3.76 |
| 1959-04-01 | 3.84 |
| 1959-05-01 | 3.97 |
| 1959-06-01 | 4.04 |
| 1959-07-01 | 4.04 |
| 1959-08-01 | 3.96 |
| 1959-09-01 | 4.13 |
| 1959-10-01 | 3.99 |
| 1959-11-01 | 3.94 |
| 1959-12-01 | 4.05 |
| 1960-01-01 | 4.13 |
| 1960-02-01 | 3.97 |
| 1960-03-01 | 3.87 |
| 1960-04-01 | 3.84 |
| 1960-05-01 | 3.84 |
| 1960-06-01 | 3.78 |
| 1960-07-01 | 3.72 |
| 1960-08-01 | 3.53 |
| 1960-09-01 | 3.53 |
| 1960-10-01 | 3.59 |
| 1960-11-01 | 3.46 |
| 1960-12-01 | 3.45 |
| 1961-01-01 | 3.44 |
| 1961-02-01 | 3.33 |
| 1961-03-01 | 3.38 |
| 1961-04-01 | 3.44 |
| 1961-05-01 | 3.38 |
| 1961-06-01 | 3.53 |
| 1961-07-01 | 3.53 |
| 1961-08-01 | 3.55 |
| 1961-09-01 | 3.54 |
| 1961-10-01 | 3.46 |
| 1961-11-01 | 3.44 |
| 1961-12-01 | 3.49 |
| 1962-01-01 | 3.32 |
| 1962-02-01 | 3.28 |
| 1962-03-01 | 3.19 |
| 1962-04-01 | 3.08 |
| 1962-05-01 | 3.09 |
| 1962-06-01 | 3.24 |
| 1962-07-01 | 3.30 |
| 1962-08-01 | 3.31 |
| 1962-09-01 | 3.18 |
| 1962-10-01 | 3.03 |
| 1962-11-01 | 3.03 |
| 1962-12-01 | 3.12 |
| 1963-01-01 | 3.12 |
| 1963-02-01 | 3.18 |
| 1963-03-01 | 3.11 |
| 1963-04-01 | 3.11 |
| 1963-05-01 | 3.15 |
| 1963-06-01 | 3.27 |
| 1963-07-01 | 3.29 |
| 1963-08-01 | 3.22 |
| 1963-09-01 | 3.27 |
| 1963-10-01 | 3.32 |
| 1963-11-01 | 3.41 |
| 1963-12-01 | 3.34 |
| 1964-01-01 | 3.23 |
| 1964-02-01 | 3.17 |
| 1964-03-01 | 3.32 |
| 1964-04-01 | 3.29 |
| 1964-05-01 | 3.21 |
| 1964-06-01 | 3.20 |
| 1964-07-01 | 3.18 |
| 1964-08-01 | 3.20 |
| 1964-09-01 | 3.25 |
| 1964-10-01 | 3.26 |
| 1964-11-01 | 3.18 |
| 1964-12-01 | 3.15 |
| 1965-01-01 | 3.06 |
| 1965-02-01 | 3.10 |
| 1965-03-01 | 3.18 |
| 1965-04-01 | 3.17 |
| 1965-05-01 | 3.19 |
| 1965-06-01 | 3.26 |
| 1965-07-01 | 3.26 |
| 1965-08-01 | 3.25 |
| 1965-09-01 | 3.36 |
| 1965-10-01 | 3.42 |
| 1965-11-01 | 3.47 |
| 1965-12-01 | 3.56 |
| 1966-01-01 | 3.52 |
| 1966-02-01 | 3.63 |
| 1966-03-01 | 3.72 |
| 1966-04-01 | 3.59 |
| 1966-05-01 | 3.68 |
| 1966-06-01 | 3.77 |
| 1966-07-01 | 3.94 |
| 1966-08-01 | 4.17 |
| 1966-09-01 | 4.11 |
| 1966-10-01 | 3.97 |
| 1966-11-01 | 3.93 |
| 1966-12-01 | 3.83 |
| 1967-01-01 | 3.58 |
| 1967-02-01 | 3.56 |
| 1967-03-01 | 3.60 |
| 1967-04-01 | 3.66 |
