CREATE TABLE table_204_137 (id DECIMAL, "race" DECIMAL, "race name" TEXT, "pole position" TEXT, "fastest lap" TEXT, "winning driver" TEXT, "winning team" TEXT, "yokohama winner" TEXT, "jay-ten winner" TEXT, "report" TEXT)

who was the winning team the most number of times ?
SELECT "winning team" FROM table_204_137 GROUP BY "winning team" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "winning team" FROM "table_204_137" GROUP BY "winning team" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1