MeasuringWorth is a service for calculating relative worth over time. The data have been created using the highest standards of the fields of economics and history, and they are rigorously refereed by the most distinguished researchers in the fields. Beginning with the United States and United Kingdom and following with Japan and China, the authors intend to keep growing the database. Includes calculators for annualized growth rates, relative values, conversion, purchasing power, inflation rates and stock growth rates.
China Data Online provides macroeconomic, census, and yearbook statistics for China.