.

NameTooltipGrouping

.

Geographic regionsRegions of the worldhttp://spreadsheets.google.com/pub?key=phT4mwjvEuGBtdf1ZeO7_PQ

.

Income groupsHow rich are you?http://spreadsheets.google.com/pub?key=phT4mwjvEuGCSmAe5aq7HKw

.

LandlockedDoes the country have a coast?http://spreadsheets.google.com/pub?key=rBwKBodk7Y08pGiA4OAfzUA