CREATE TABLE table_58492 ("Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

How many golds were there for Iceland with more than 15 silver?
SELECT COUNT("Gold") FROM table_58492 WHERE "Silver" > '15' AND "Nation" = 'iceland'
SELECT COUNT("Gold") FROM "table_58492" WHERE "Nation" = 'iceland' AND "Silver" > '15'