CREATE TABLE table_68987 ("Class" CLOB, "Type" CLOB, "Fleet numbers" CLOB, "Quantity made" FLOAT, "Manufacturer" CLOB, "Date made" CLOB, "Date withdrawn" CLOB)

What is listed as the Date made with a Quantity made of 13?
SELECT "Date made" FROM table_68987 WHERE "Quantity made" = '13'
SELECT "Date made" FROM "table_68987" WHERE "Quantity made" = '13'