CREATE TABLE table_204_477 (id DECIMAL, "pos" DECIMAL, "no" DECIMAL, "driver" TEXT, "team" TEXT, "laps" DECIMAL, "time/retired" TEXT, "grid" DECIMAL, "points" DECIMAL)

tell me the number of laps completed by jj lehto .
SELECT "laps" FROM table_204_477 WHERE "driver" = 'jj lehto'
SELECT "laps" FROM "table_204_477" WHERE "driver" = 'jj lehto'