CREATE TABLE table_24458 ("Country" CLOB, "Area  ( km\\u00b2 ) " CLOB, "Population  ( millions ,  2011 ) " CLOB, "GDP  ( PPP )   ( USD ,  per capita ) " FLOAT, "GDP  ( nominal )   ( billions USD ) " CLOB, "HDI  ( 2011 ) " CLOB)

What is the population in millions for 2011 where the GDP (nominal) (billions USD) is 4?
SELECT "Population (millions, 2011)" FROM table_24458 WHERE "GDP (nominal) (billions USD)" = '4'
SELECT "Population (millions, 2011)" FROM "table_24458" WHERE "GDP (nominal) (billions USD)" = '4'