CREATE TABLE table_203_408 (id DECIMAL, "rd." DECIMAL, "grand prix" TEXT, "date" TEXT, "location" TEXT, "pole position" TEXT, "fastest lap" TEXT, "winning driver" TEXT, "constructor" TEXT, "report" TEXT)

who had the fastest lap in the last grand prix of the season ?
SELECT "fastest lap" FROM table_203_408 ORDER BY "rd." DESC LIMIT 1
SELECT "fastest lap" FROM "table_203_408" ORDER BY "rd." DESC NULLS LAST LIMIT 1