CREATE TABLE table_204_634 (id DECIMAL, "tour" DECIMAL, "official title" TEXT, "venue" TEXT, "city" TEXT, "date\ start" TEXT, "date\ finish" TEXT, "prize money\ usd" DECIMAL, "report" TEXT)

what is the total prize payout for all 13 series ?
SELECT SUM("prize money\nusd") FROM table_204_634
SELECT SUM("prize money\nusd") FROM "table_204_634"