I mean the Koreans are a close second, which is fair enough. And Poles and Russians, obvs. But Sri Lanka I don't really get.
We're not even in the top ten.

Sri Lanka: 35.3
South Korea: 32
Poland: 22.3
Russia: 20.1
Japan: 19.7
India: 17.9
France: 16.9
Thailand: 16
United States: 14.3
Argentina: 14.2
Germany: 13.4
Canada: 12.3