:?
On the home page, the new box BOINC Stats currently in database shows 751 countries at the moment. Looks like you are not parsing for uniques or :wink: you are not counting countries on this planet.

This is the total of countries in the database, a sum of the countries from the different projects. (BOINC + SETI + Predictor + Climate + Pirates + LHC + Einstein). It isn't the number of countries in the world, but the actual number of countries that BOINCstats is calculating stats for.
It's of no real value, it's just to show what's in the database.