CREATE TABLE table_19721 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Record" TEXT, "Game Site" TEXT, "Attendance" FLOAT)

What was the attendance at the game played on December 10, 1972?
SELECT "Attendance" FROM table_19721 WHERE "Date" = 'December 10, 1972'
SELECT "Attendance" FROM "table_19721" WHERE "Date" = 'December 10, 1972'