Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Week | Date | Opponent | Result | Attendance |
| --- | --- | --- | --- | --- |
| 1 | September 1, 1991 | Minnesota Vikings | W 10–6 | 64,112 |
| 2 | September 8, 1991 | at Tampa Bay Buccaneers | W 21–20 | 65,625 |
| 3 | September 15, 1991 | New York Giants | W 20–17 | 64,829 |
| 4 | September 23, 1991 | New York Jets | W 19–13 | 65,255 |
| 5 | September 29, 1991 | at Buffalo Bills | L 35–20 | 80,366 |
| 6 | October 6, 1991 | Washington Redskins | L 20–7 | 64,941 |
| 7 | Bye | Bye | Bye | Bye |
| 8 | October 17, 1991 | at Green Bay Packers | W 10–0 | 58,435 |
| 9 | October 27, 1991 | at New Orleans Saints | W 20–17 | 68,591 |
| 10 | November 3, 1991 | Detroit Lions | W 20–10 | 57,281 |
| 11 | November 11, 1991 | at Minnesota Vikings | W 34–17 | 59,001 |
| 12 | November 17, 1991 | at Indianapolis Colts | W 31–17 | 60,519 |
| 13 | November 24, 1991 | Miami Dolphins | L 16–13 | 58,288 |
| 14 | November 28, 1991 | at Detroit Lions | L 16–6 | 78,879 |
| 15 | December 8, 1991 | Green Bay Packers | W 27–13 | 62,353 |
| 16 | December 14, 1991 | Tampa Bay Buccaneers | W 27–0 | 54,719 |
| 17 | December 23, 1991 | at San Francisco 49ers | L 52–14 | 60,419 |
Question:
what is the only week with more than 80,000 attendance
Answer:
5