CREATE TABLE table_34412 ("Game" FLOAT, "December" FLOAT, "Opponent" CLOB, "Score" CLOB, "Record" CLOB, "Points" FLOAT)

Which December has a Record of 21 6 5?
SELECT AVG("December") FROM table_34412 WHERE "Record" = '21–6–5'
SELECT AVG("December") FROM "table_34412" WHERE "Record" = '21–6–5'