!!!Did you know this about Tuvalu? Did you know that Tuvalu is among the top 10 of the 193 UN countries in the following 3 respects. #Permanent Crop - %: 60.0 (Rank 1). #Health expenditures - % of GDP: 17.3 (Rank 4). #GDP per capita per capita: 0.32 (Rank 7).