CREATE TABLE table_50063 ("2012 rank" FLOAT, "Municipio" TEXT, "2010 land area" TEXT, "2010 population density" TEXT, "ANSI" FLOAT, "Location" TEXT)

what is the 2010 population density for municipio ponce?
SELECT "2010 population density" FROM table_50063 WHERE "Municipio" = 'ponce'
SELECT "2010 population density" FROM "table_50063" WHERE "Municipio" = 'ponce'