Table:
text: 1980 Cleveland Browns season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
11 November 16, 1980 at Pittsburgh Steelers L 16–13 54563
12 November 23, 1980 Cincinnati Bengals W 31–7 79253
13 November 30, 1980 at Houston Oilers W 17–14 51514
14 December 7, 1980 New York Jets W 17–14 78454
15 December 14, 1980 at Minnesota Vikings L 28–23 42202
16 December 21, 1980 at Cincinnati Bengals W 27–24 50058

Question: In the 1980 Cleveland Browns season schedule, what was the average attendance in the weeks after 16?