CREATE TABLE table_72148 ("No" TEXT, "City district  ( Stadtteil ) " TEXT, "Area in km\\u00b2" TEXT, "Population" TEXT, "Foreign nationals" TEXT, "Foreign nationals in %" TEXT, "Area district  ( Ortsbezirk ) " TEXT)

What is the number of the city district of stadtteil where foreigners are 5.162?
SELECT COUNT("City district (Stadtteil)") FROM table_72148 WHERE "Foreign nationals" = '5.162'
SELECT COUNT("City district (Stadtteil)") FROM "table_72148" WHERE "Foreign nationals" = '5.162'