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)

what is the number of times chevrolet was the winning team ?
SELECT COUNT(*) FROM table_204_137 WHERE "winning team" = 'chevrolet'
SELECT COUNT(*) FROM "table_204_137" WHERE "winning team" = 'chevrolet'