CREATE TABLE table_55116 ("Region" TEXT, "Capital" TEXT, "Area  ( km\\u00b2 ) " TEXT, "Area  ( sq. mi. ) " TEXT, "Population" TEXT, "GDP  (  bn  ) " TEXT)

Which capital has a population of 308,610?
SELECT "Capital" FROM table_55116 WHERE "Population" = '308,610'
SELECT "Capital" FROM "table_55116" WHERE "Population" = '308,610'