CREATE TABLE table_38156 ("Player" CLOB, "Played" FLOAT, "Sets Won" FLOAT, "Sets Lost" FLOAT, "Legs Won" FLOAT, "Legs Lost" FLOAT, "100+" FLOAT, "140+" FLOAT, "180s" FLOAT, "High Checkout" FLOAT, "3-dart Average" FLOAT)

How many sets lost have a sets won less than 0?
SELECT COUNT("Sets Lost") FROM table_38156 WHERE "Sets Won" < '0'
SELECT COUNT("Sets Lost") FROM "table_38156" WHERE "Sets Won" < '0'