CREATE TABLE table_204_283 (id DECIMAL, "season" TEXT, "series" TEXT, "team" TEXT, "races" DECIMAL, "wins" DECIMAL, "poles" DECIMAL, "f/laps" DECIMAL, "podiums" DECIMAL, "points" DECIMAL, "position" TEXT)

did pastor maldonado compete in more races in 2009 or in 2006 ?
SELECT "season" FROM table_204_283 WHERE "season" IN (2009, 2006) ORDER BY "races" DESC LIMIT 1
SELECT "season" FROM "table_204_283" WHERE "season" IN (2009, 2006) ORDER BY "races" DESC NULLS LAST LIMIT 1