These are some macroeconomic data for 21 select (rich) countries. I've used these data before to discuss issues of grouping and skew in cross-sectional data.
A data frame with 1428 observations on the following 7 variables.
the country name
The country's ISO code
a numeric vector for the year
Population in millions
Index of human capital per person, based on years of schooling and returns to education
Real GDP at constant 2011 national prices (in million 2011 USD)
Share of labor compensation in GDP at current national prices
Taken from the
pwt9 package. See: http://www.ggdc.net/pwt/