Source: University of Pennsylvania  

Release: Penn World Table 7.1  

Units:  2005 International Dollars per Equivalent Adult, Not Seasonally Adjusted

Frequency:  Annual

This data series refers to China Version 1. Two estimates are provided for China and their rationale is discussed in the Detailed Documentation. One estimate is based mostly on ICP 2005 and national growth statistics and is labeled China1. China1 does incorporate a productivity adjustment that has been applied to all countries in ICP 2005. China2 also adjusts for the urban character of its prices in ICP 2005 and also adjusts the growth rate.

The equivalent measure used here assigns a weight of 1.0 to all persons over 15, and 0.5 for those under age 15.
For more information and proper citation see http://www.rug.nl/research/ggdc/data/pwt/pwt-7.1

Source Indicator: rgdpeqa