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 | Game site | Attendance |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 1971-09-19 | at Baltimore Colts | L 22–0 | Memorial Stadium | 56458.0 |
| 2.0 | 1971-09-27 | at St. Louis Cardinals | L 17–10 | Busch Memorial Stadium | 50358.0 |
| 3.0 | 1971-10-03 | at Miami Dolphins | W 14–10 | Miami Orange Bowl | 70670.0 |
| 4.0 | 1971-10-10 | at New England Patriots | L 20–0 | Schafer Stadium | 61357.0 |
| 5.0 | 1971-10-17 | Buffalo Bills | W 28–17 | Shea Stadium | 61948.0 |
| 6.0 | 1971-10-24 | Miami Dolphins | L 30–14 | Shea Stadium | 62130.0 |
| 7.0 | 1971-10-31 | at San Diego Chargers | L 49–21 | San Diego Stadium | 44786.0 |
| 8.0 | 1971-11-07 | Kansas City Chiefs | W 13–10 | Shea Stadium | 62812.0 |
| 9.0 | 1971-11-14 | Baltimore Colts | L 14–13 | Shea Stadium | 63947.0 |
| 10.0 | 1971-11-21 | at Buffalo Bills | W 20–7 | War Memorial Stadium | 41577.0 |
| 11.0 | 1971-11-28 | San Francisco 49ers | L 24–21 | Shea Stadium | 63936.0 |
| 12.0 | 1971-12-04 | at Dallas Cowboys | L 52–10 | Texas Stadium | 66689.0 |
| 13.0 | 1971-12-12 | New England Patriots | W 13–6 | Shea Stadium | 63175.0 |
| 14.0 | 1971-12-19 | Cincinnati Bengals | W 35–21 | Shea Stadium | 63151.0 |
Question:
Which Date has a Result of w 13–6?
Answer:
1971-12-12