!!!Did you know this about Sri Lanka? Did you know that Sri Lanka is very low in ranking among 193 countries in the following 4 respects. #Heliports - : 1.0 (Rank 103). #Waterways - km: 160.0 (Rank 101). #Education expenditures - % of GDP: 1.7 (Rank 160). #Urbanization - %: 15.1 (Rank 189).