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 |
| --- | --- | --- | --- | --- |
| 1.0 | September 12, 1999 | New York Giants | L 17-13 | 65,026 |
| 2.0 | September 19, 1999 | at Philadelphia Eagles | W 19-5 | 64,285 |
| 3.0 | September 26, 1999 | Denver Broncos | W 13-10 | 65,297 |
| 4.0 | October 3, 1999 | at Minnesota Vikings | L 21-14 | 64,106 |
| 5.0 | October 10, 1999 | at Green Bay Packers | L 26-23 | 59,868 |
| 6.0 | Bye | Bye | Bye | Bye |
| 7.0 | October 24, 1999 | Chicago Bears | W 6-3 | 65,283 |
| 8.0 | October 31, 1999 | at Detroit Lions | L 20-3 | 63,135 |
| 9.0 | November 7, 1999 | at New Orleans Saints | W 31-16 | 47,129 |
| 10.0 | November 14, 1999 | Kansas City Chiefs | W 17-10 | 64,927 |
| 11.0 | November 21, 1999 | Atlanta Falcons | W 19-10 | 65,158 |
| 12.0 | November 28, 1999 | at Seattle Seahawks | W 16-3 | 66,314 |
| 13.0 | December 6, 1999 | Minnesota Vikings | W 24-17 | 65,741 |
| 14.0 | December 12, 1999 | Detroit Lions | W 23-16 | 65,536 |
| 15.0 | December 19, 1999 | at Oakland Raiders | L 45-0 | 46,395 |
| 16.0 | December 26, 1999 | Green Bay Packers | W 29-10 | 65,273 |
| 17.0 | January 2, 2000 | at Chicago Bears | W 20-6 | 66,944 |
Question:
What week number saw a w 31-16 result?
Answer:
9.0