World Bank national accounts data, and OECD National Accounts data files.
data(gdp)
An object of class "data.table"
.
data(gdp) str(gdp)#> Classes ‘data.table’ and 'data.frame': 11030 obs. of 3 variables: #> $ ISO : chr "AFG" "AFG" "AFG" "AFG" ... #> $ YEAR: int 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 ... #> $ GDP : num 8.01e+09 8.69e+09 8.78e+09 9.76e+09 1.03e+10 ... #> - attr(*, ".internal.selfref")=<externalptr>