CREATE TABLE table_63102 ("Rank" TEXT, "Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

What is the least bronze number when the silver is less than 0?
SELECT MIN("Bronze") FROM table_63102 WHERE "Silver" < '0'
SELECT MIN("Bronze") FROM "table_63102" WHERE "Silver" < '0'