CREATE TABLE table_616 ("English Name" TEXT, "Simplified" TEXT, "Traditional" TEXT, "Pinyin" TEXT, "Area" FLOAT, "Population" FLOAT, "Density" FLOAT)

How many people live in the district who's capital is h ngf ng xi n?
SELECT "Population" FROM table_616 WHERE "Pinyin" = 'Héngfēng Xiàn'
SELECT "Population" FROM "table_616" WHERE "Pinyin" = 'Héngfēng Xiàn'