Table:
text: 1980 San Diego Chargers season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
11 November 16, 1980 Kansas City Chiefs W 20-7 50248
12 November 20, 1980 at Miami Dolphins W 27-24 63013
13 November 30, 1980 Philadelphia Eagles W 22-21 51567
14 December 7, 1980 at Washington Redskins L 40-17 48556
15 December 13, 1980 Seattle Seahawks W 21-14 49980
16 December 22, 1980 Pittsburgh Steelers W 26-17 51785

Question: Total weeks of 49,980 viewers for the 1980 San Diego Chargers season ?

Question: What was the average attendance for the San Diego Chargers 1980 season on December 22, 1980?