Table:
text: 1986 San Francisco 49ers season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
10 November 9, 1986 St. Louis Cardinals W 43-17 59172
11 November 17, 1986 (Mon) at Washington Redskins L 6-14 54774
12 November 23, 1986 Atlanta Falcons W 20-0 58747
13 December 1, 1986 (Mon) New York Giants L 17-21 59777
14 December 7, 1986 New York Jets W 24-10 58091
15 December 14, 1986 at New England Patriots W 29-24 60787
16 December 19, 1986 (Fri) Los Angeles Rams W 24-14 60366

Question: What is the lowest attendance for the San Francisco 49ers in the 1986 season when the Atlanta Falcons were the opponents?