CREATE TABLE table_10509 ("Game" FLOAT, "Date" CLOB, "Score" CLOB, "Location" CLOB, "Time" CLOB, "Attendance" FLOAT)

What was the attendance on September 11?
SELECT MAX("Attendance") FROM table_10509 WHERE "Date" = 'september 11'
SELECT MAX("Attendance") FROM "table_10509" WHERE "Date" = 'september 11'