CREATE TABLE table_52215 ("Year" FLOAT, "Theme" CLOB, "Artist" CLOB, "Mintage" CLOB, "Issue Price" CLOB)

A mintage of 31,997 has what issue price?
SELECT "Issue Price" FROM table_52215 WHERE "Mintage" = '31,997'
SELECT "Issue Price" FROM "table_52215" WHERE "Mintage" = '31,997'