CREATE TABLE table_5303 ("Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Loss" TEXT, "Attendance" FLOAT, "Record" TEXT)

How many people attended the game on May 31?
SELECT SUM("Attendance") FROM table_5303 WHERE "Date" = 'may 31'
SELECT SUM("Attendance") FROM "table_5303" WHERE "Date" = 'may 31'