What is the largest season with a Third Driver of jimmy davies?
CREATE TABLE "world_championship_indy_500_summary" (
  "season" real,
  "cars_entered" real,
  "winning_driver" text,
  "second_driver" text,
  "third_driver" text,
  "race_report" text
);
SELECT MAX("season") FROM "world_championship_indy_500_summary" WHERE "third_driver"='jimmy davies';