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 7, 1980 | at Seattle Seahawks | W 34-13 | 62042.0 |
| 2.0 | September 14, 1980 | Oakland Raiders | W 30-24 | 51943.0 |
| 3.0 | September 21, 1980 | at Denver Broncos | W 30-13 | 74970.0 |
| 4.0 | September 28, 1980 | at Kansas City Chiefs | W 24-7 | 45161.0 |
| 5.0 | October 5, 1980 | Buffalo Bills | L 26-24 | 51982.0 |
| 6.0 | October 12, 1980 | at Oakland Raiders | L 38-24 | 44826.0 |
| 7.0 | October 19, 1980 | New York Giants | W 44-7 | 50397.0 |
| 8.0 | October 26, 1980 | at Dallas Cowboys | L 42-31 | 60639.0 |
| 9.0 | November 2, 1980 | at Cincinnati Bengals | W 31-14 | 46406.0 |
| 10.0 | November 9, 1980 | Denver Broncos | L 20-13 | 51435.0 |
| 11.0 | November 16, 1980 | Kansas City Chiefs | W 20-7 | 50248.0 |
| 12.0 | November 20, 1980 | at Miami Dolphins | W 27-24 | 63013.0 |
| 13.0 | November 30, 1980 | Philadelphia Eagles | W 22-21 | 51567.0 |
| 14.0 | December 7, 1980 | at Washington Redskins | L 40-17 | 48556.0 |
| 15.0 | December 13, 1980 | Seattle Seahawks | W 21-14 | 49980.0 |
| 16.0 | December 22, 1980 | Pittsburgh Steelers | W 26-17 | 51785.0 |
Question:
Mean attendance for December 22, 1980?
Answer:
51785.0