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 | Record | Game Site | Attendance |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | September 18, 1977 | at Seattle Seahawks | W 29–14 | 1–0 | Kingdome | 58991.0 |
| 2.0 | September 25, 1977 | at New York Jets | W 20–12 | 2–0 | Shea Stadium | 43439.0 |
| 3.0 | October 2, 1977 | Buffalo Bills | W 17–14 | 3–0 | Memorial Stadium | 49247.0 |
| 4.0 | October 9, 1977 | Miami Dolphins | W 45–28 | 4–0 | Memorial Stadium | 57829.0 |
| 5.0 | October 16, 1977 | at Kansas City Chiefs | W 17–6 | 5–0 | Arrowhead Stadium | 63076.0 |
| 6.0 | October 23, 1977 | at New England Patriots | L 3–17 | 5–1 | Schaeffer Stadium | 60958.0 |
| 7.0 | October 30, 1977 | Pittsburgh Steelers | W 31–21 | 6–1 | Memorial Stadium | 60225.0 |
| 8.0 | November 7, 1977 | Washington Redskins | W 10–3 | 7–1 | Memorial Stadium | 57740.0 |
| 9.0 | November 13, 1977 | at Buffalo Bills | W 31–13 | 8–1 | Rich Stadium | 39444.0 |
| 10.0 | November 20, 1977 | New York Jets | W 33–12 | 9–1 | Memorial Stadium | 50957.0 |
| 11.0 | November 27, 1977 | at Denver Broncos | L 13–27 | 9–2 | Mile High Stadium | 74939.0 |
| 12.0 | December 5, 1977 | at Miami Dolphins | L 6–17 | 9–3 | Miami Orange Bowl | 68977.0 |
| 13.0 | December 11, 1977 | Detroit Lions | L 10–13 | 9–4 | Memorial Stadium | 45124.0 |
Question:
What was the highest attendance?
Answer:
74939.0