Table: asian_gdp_per_capita
Columns: asian_rank
world_rank
country
gdp_per_capita
gdp_world_rank

Question: Name the gdp world rank for asian rank being 15
SQL: SELECT "gdp_world_rank" FROM asian_gdp_per_capita WHERE "asian_rank" = 15

Question: Name the gdp per capita for world rank being 131
SQL: SELECT "gdp_per_capita" FROM asian_gdp_per_capita WHERE "gdp_world_rank" = '131'

Question: Name the gdp world rank for asian rank being 20
SQL: SELECT "gdp_world_rank" FROM asian_gdp_per_capita WHERE "asian_rank" = 20

Question: Name the most world rank for asian rank being 31
SQL: SELECT MAX("world_rank") FROM asian_gdp_per_capita WHERE "asian_rank" = 31