CREATE TABLE table_name_43 (rank INT, studio_s_ VARCHAR, year VARCHAR)

Tell me the average rank for dharma productions before 2013
SELECT AVG(rank) FROM table_name_43 WHERE studio_s_ = "dharma productions" AND year < 2013
SELECT AVG("rank") FROM "table_name_43" WHERE "dharma productions" = "studio_s_" AND "year" < 2013