CREATE TABLE table_77661 ("Rank by average" FLOAT, "Place" FLOAT, "Couple" TEXT, "Total" FLOAT, "Number of dances" FLOAT, "Average" FLOAT)

What is the average when the rank by average is more than 12?
SELECT SUM("Average") FROM table_77661 WHERE "Rank by average" > '12'
SELECT SUM("Average") FROM "table_77661" WHERE "Rank by average" > '12'