CREATE TABLE table_name_15 (population VARCHAR2, gdp_per_capita__us$_ VARCHAR2)

What is the total population of the country that has a GDP per capita (US$) of 15,054?
SELECT population FROM table_name_15 WHERE gdp_per_capita__us$_ = "15,054"
SELECT "population" FROM "table_name_15" WHERE "15,054" = "gdp_per_capita__us$_"