CREATE TABLE table_15322 ("Version" TEXT, "Code name" TEXT, "Release date" TEXT, "API level" FLOAT, "Distribution" TEXT)

with release date of february 9, 2011, what is the api level?
SELECT AVG("API level") FROM table_15322 WHERE "Release date" = 'february 9, 2011'
SELECT AVG("API level") FROM "table_15322" WHERE "Release date" = 'february 9, 2011'