CREATE TABLE table_71310 ("Member countries" TEXT, "Population" TEXT, "Area  ( km\\u00b2 ) " TEXT, "GDP  ( billion US$ ) " TEXT, "GDP per capita  ( US$ ) " TEXT)

What is the GDP per capita (US$) of the country that has a Population of 2,011,473?
SELECT "GDP per capita (US$)" FROM table_71310 WHERE "Population" = '2,011,473'
SELECT "GDP per capita (US$)" FROM "table_71310" WHERE "Population" = '2,011,473'