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 8, 2002 | at Cincinnati Bengals | W 34–6 | 53,705 |
| 2.0 | September 15, 2002 | Houston Texans | W 24–3 | 56,098 |
| 3.0 | September 22, 2002 | at Arizona Cardinals | W 23–15 | 28,980 |
| 4.0 | September 29, 2002 | New England Patriots | W 21–14 | 66,463 |
| 5.0 | October 6, 2002 | at Denver Broncos | L 26–9 | 75,065 |
| 6.0 | October 13, 2002 | Kansas City Chiefs | W 35–34 | 58,995 |
| 7.0 | October 20, 2002 | at Oakland Raiders | W 27–21 | 60,974 |
| 8.0 | Bye | Bye | Bye | Bye |
| 9.0 | November 3, 2002 | New York Jets | L 44–13 | 59,772 |
| 10.0 | November 10, 2002 | at St. Louis Rams | L 28–24 | 66,093 |
| 11.0 | November 17, 2002 | San Francisco 49ers | W 20–17 | 67,161 |
| 12.0 | November 24, 2002 | at Miami Dolphins | L 30–3 | 73,138 |
| 13.0 | December 1, 2002 | Denver Broncos | W 30–27 | 66,357 |
| 14.0 | December 8, 2002 | Oakland Raiders | L 27–7 | 67,968 |
| 15.0 | December 15, 2002 | at Buffalo Bills | L 20–13 | 61,838 |
| 16.0 | December 22, 2002 | at Kansas City Chiefs | L 24–22 | 77,899 |
| 17.0 | December 29, 2002 | Seattle Seahawks | L 31–28 | 52,159 |
Question:
What is the Week number with a result of l 31–28?
Answer:
1.0