Format
A dataframe containing :
- year
- the year
- country
- the country name (factor)
- opec
- OPEC member ?
- com
- communist regime ?
- pop
- country's population (in thousands)
- gdp
- real GDP per capita (in 1985 US dollars)
- sr
- saving rate (in percent)
Source
Summers, R. and A. Heston (1991) The Penn world table (mark 5): an exanded set of international comparaisons, 1950-1988, Quarterly Journal of Economics, 29, 229-256.