CREATE TABLE table_name_64 (season NUMBER, venue VARCHAR2, drivers VARCHAR2)

What is the average Season when the venue was circuit de nevers magny-cours, and Drivers was more than 30?
SELECT AVG(season) FROM table_name_64 WHERE venue = "circuit de nevers magny-cours" AND drivers > 30
SELECT AVG("season") FROM "table_name_64" WHERE "circuit de nevers magny-cours" = "venue" AND "drivers" > 30