Table:
text: 1966 Denver Broncos season
Regular season
Regular season
Week Date_ Opponent Result_ Game_site Record Attendance
1 September 3, 1966 at Houston Oilers L 7–45 Rice Stadium 0–1 30156
3 September 18, 1966 Boston Patriots L 10–24 Bears Stadium 0–2 25337
4 September 25, 1966 New York Jets L 7–16 Bears Stadium 0–3 29878
5 October 2, 1966 Houston Oilers W 40–38 Bears Stadium 1–3 27203
6 October 8, 1966 at Kansas City Chiefs L 10–37 Municipal Stadium 1–4 33929
7 October 16, 1966 at Miami Dolphins L 7–24 Miami Orange Bowl 1–5 23393
8 October 23, 1966 Kansas City Chiefs L 10–56 Bears Stadium 1–6 26196

text: 1966 Denver Broncos season
Regular season
Regular season
Week Date_ Opponent Result_ Game_site Record Attendance
9 October 30, 1966 at San Diego Chargers L 17–24 Balboa Stadium 1–7 25819
10 November 6, 1966 at Boston Patriots W 17–10 Fenway Park 2–7 18154
12 November 20, 1966 Oakland Raiders L 3–17 Bears Stadium 2–8 26703
13 November 27, 1966 San Diego Chargers W 20–17 Bears Stadium 3–8 24860
14 December 4, 1966 Miami Dolphins W 17–7 Bears Stadium 4–8 32592
15 December 11, 1966 at Oakland Raiders L 10–28 Oakland-Alameda County Coliseum 4–9 31765
16 December 18, 1966 at Buffalo Bills L 21–38 War Memorial Stadium 4–10 40538

Question: What was the attendance at the week 7 game vs. the San Diego Chargers for the Denver Broncos 1966 season?