Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Thousands of Gross Tons, Not Seasonally Adjusted

Frequency:  Quarterly

Only Merchant Vessels Of 100 Tons Gross And Over Are Included. Seasonally Adjusted Data Not Used 1916-22, 1936-39. Gross Tonnage Represents, In Units Of 100 Cubic Feet, The Entire Capacity Of The Vessel, Including Crew And Engine Space. Source: Lloyd'S Register Shipbuilding Returns And Letter From London Office Of Lloyd'S Register Of Shipping.

This NBER data series q02099b appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.

NBER Indicator: q02099b