CREATE TABLE table_67206 ("Year" FLOAT, "Denomination" CLOB, "Reverse" CLOB, "Weight" CLOB, "Diameter" CLOB, "Fineness" CLOB, "Series" CLOB)

What denomination was produced in 2006?
SELECT "Denomination" FROM table_67206 WHERE "Year" = '2006'
SELECT "Denomination" FROM "table_67206" WHERE "Year" = '2006'