CREATE TABLE table_7517 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" FLOAT)

What was the total attendance October 22, 1972?
SELECT SUM("Attendance") FROM table_7517 WHERE "Date" = 'october 22, 1972'
SELECT SUM("Attendance") FROM "table_7517" WHERE "Date" = 'october 22, 1972'