CREATE TABLE table_42928 ("Rank" CLOB, "Nation" CLOB, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

What is the least amount of silver medals won by Total with more than 1 bronze and more than 18 total medals won?
SELECT MIN("Silver") FROM table_42928 WHERE "Bronze" > '1' AND "Nation" = 'total' AND "Total" > '18'
SELECT MIN("Silver") FROM "table_42928" WHERE "Bronze" > '1' AND "Nation" = 'total' AND "Total" > '18'