CREATE TABLE table_name_82 (seasons_in_league INT, best_position VARCHAR)

Which sum of Seasons in league has a Best Position of 5th (2007)?
SELECT SUM(seasons_in_league) FROM table_name_82 WHERE best_position = "5th (2007)"
SELECT SUM("seasons_in_league") FROM "table_name_82" WHERE "5th (2007)" = "best_position"