CREATE TABLE table_31256 ("Rank by average" FLOAT, "Place" FLOAT, "Couple" TEXT, "Total points" TEXT, "Number of dances" FLOAT, "Average" TEXT)

what is the average when the place is 16?
SELECT "Average" FROM table_31256 WHERE "Place" = '16'
SELECT "Average" FROM "table_31256" WHERE "Place" = '16'