What is the average number in attendance on September 16?
CREATE TABLE table_name_23 (attendance INTEGER, date VARCHAR)
SELECT AVG(attendance) FROM table_name_23 WHERE date = "september 16"
### Context: CREATE TABLE table_name_23 (attendance INTEGER, date VARCHAR) ### Question: What is the average number in attendance on September 16? ### Answer: SELECT AVG(attendance) FROM table_name_23 WHERE date = "september 16"