Table:
0
A
B
C
D
E
1
Week
Date
Opponent
Result
Attendance
2
1
September 7, 1986
Miami Dolphins
W 50–28
57,726
3
2
September 14, 1986
at New York Giants
L 20–7
74,921
4
3
September 21, 1986
Washington Redskins
L 30–27
57,853
5
4
September 28, 1986
at Los Angeles Raiders
L 17–13
63,153
6
5
October 6, 1986
at Seattle Seahawks
L 33–7
63,207
7
6
October 12, 1986
Denver Broncos
L 31–14
55,662
8
7
October 19, 1986
at Kansas City Chiefs
L 42–41
55,767
9
8
October 26, 1986
at Philadelphia Eagles
L 23–7
41,469
10
9
November 2, 1986
Kansas City Chiefs
L 24–23
48,518
11
10
November 9, 1986
at Denver Broncos
W 9–3
75,012
12
11
November 16, 1986
Dallas Cowboys
L 24–21
55,622
13
12
November 20, 1986
Los Angeles Raiders
L 37–31
56,031
14
13
November 30, 1986
at Indianapolis Colts
W 17–3
47,950
15
14
December 7, 1986
Houston Oilers
W 27–0
40,103
16
15
December 14, 1986
Seattle Seahawks
L 34–24
47,096
17
16
December 21, 1986
at Cleveland Browns
L 47–17
68,505

Questions and formulas:
Question: When was the last time, since December 14, 1986, that the attendance was lower than 47,096?
Formula: SUM(FILTER(A1, (B1="december 14, 1986")*(E1<47096)))
Formula2: SUM(FILTER(A2:A17, (B2:B17="december 14, 1986")*(E2:E17<47096)))
Level: easy