Penn world tables version 6.1

Constructed by Robert Summers and Alan Heston of the University of Pennsylvania, together with the late Irving Kravis, the Penn World Tables are the definitive source for real national accounts data. The national accounts for each country, initially in their own currencies, are adjusted using detailed price data to obtain real national accounts in a common currency (U.S. dollars) across countries. These data are invaluable for making comparisons of Gross Domestic Product across countries, and for all manner of research on development and growth.

Alternative title
Penn world tables version 6.1. Oct. 2002 ed.
Series title
Penn world tables
Data creator
Heston, Alan, Robert Summers and Bettina Aten
Date of creation
Philadelphia, PA: University of Pennsylvania. Center for International Comparisons (CICUP)
Date of distribution
2003 Jun 9th
Geographic coverage

international, 168 countries

Time period
Mode of data collection

Derived. PWT6.0 was mainly based on the World Development Indicators (WDI) 2000 disk, while PWT6.1 uses the WDI 2002 national accounts for non-OECD countries, and the OECD 2002 (see Electronic Publications and National Accounts of OECD countries: Main Aggregates 1970/2000 2002 Edition Volume 1) national accounts for 30 OECD countries. Data for years not in the WDI or OECD disks are obtained from previous national accounts files used in PWT5.6 and earlier versions. The underlying National Accounts files for PWT6.1 (current and constant 1996 series in local currencies for GDP components) is now provided as a file (see Downloads) with the permission of the World Bank and the OECD.

Extent of file
2 data filex (6,536 and 321 logical records) & accompanying documentation

Base year is 1996.

Funding agency
National Science Foundation grant no., 9911377
Access status