CREATE TABLE table_36215 ("Rank" FLOAT, "Player" TEXT, "Country" TEXT, "Events" FLOAT, "Prize money  (  $  ) " FLOAT)

What is the least amount of prize money when there are 21 events?
SELECT MIN("Prize money ( $ )") FROM table_36215 WHERE "Events" = '21'
SELECT MIN("Prize money ( $ )") FROM "table_36215" WHERE "Events" = '21'