Question: How many different imports from Mercosur had a % of 18.0?
SQL: SELECT COUNT("GDP (nominal) per capita") FROM "1-25869317-1" WHERE "Imports from Mercosur (% of each, 2010)" = '18.0';

Question: What is the GDP (ppp) in 2011 when the imports from Mercosur is 48.8?
SQL: SELECT MIN("GDP (PPP) in 2011 ( USD millions)") FROM "1-25869317-1" WHERE "Imports from Mercosur (% of each, 2010)" = '48.8';

Question: What is the lowest GDP (ppp) per capita?
SQL: SELECT MIN("GDP (PPP) per capita") FROM "1-25869317-1";