user: Question: What is the average week with st. louis cardinals with less than 80010 attendance?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 17, 1972', 'at Kansas City Chiefs', 'W 20–10', '1–0', 79829.0]
SQL:

assistant: SELECT AVG("Week") FROM "Table" WHERE "Opponent" = 'st. louis cardinals' AND "Attendance" < 80010.0;