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 16, 1973 | at Minnesota Vikings | L 24–16 | 44818.0 |
| 2.0 | September 23, 1973 | Miami Dolphins (at Berkeley, CA ) | W 12–7 | 74121.0 |
| 3.0 | September 30, 1973 | at Kansas City Chiefs | L 16–3 | 72631.0 |
| 4.0 | October 7, 1973 | at St. Louis Cardinals | W 17–10 | 49051.0 |
| 5.0 | October 14, 1973 | at San Diego Chargers | W 27–17 | 50672.0 |
| 6.0 | October 22, 1973 | at Denver Broncos | T 23–23 | 51270.0 |
| 7.0 | October 28, 1973 | at Baltimore Colts | W 34–21 | 59008.0 |
| 8.0 | November 4, 1973 | New York Giants | W 42–0 | 51200.0 |
| 9.0 | November 11, 1973 | Pittsburgh Steelers | L 17–9 | 47535.0 |
| 10.0 | November 18, 1973 | Cleveland Browns | L 7–3 | 47398.0 |
| 11.0 | November 25, 1973 | San Diego Chargers | W 31–3 | 40195.0 |
| 12.0 | December 2, 1973 | at Houston Oilers | W 17–6 | 25801.0 |
| 13.0 | December 8, 1973 | Kansas City Chiefs | W 37–7 | 53945.0 |
| 14.0 | December 16, 1973 | Denver Broncos | W 21–17 | 51910.0 |
Question:
What is the highest number in attendance against the game at Kansas City Chiefs?
Answer:
72631.0