Table:
0
A
B
C
D
E
1
Week
Date
Opponent
Result
Attendance
2
1
September 16, 1973
at Miami Dolphins
L 21-13
68,275
3
2
September 23, 1973
at Denver Broncos
W 36-34
50,966
4
3
September 30, 1973
Los Angeles Rams
L 40-20
57,487
5
4
October 7, 1973
at Atlanta Falcons
W 13-9
51,107
6
5
October 14, 1973
Minnesota Vikings
L 17-13
56,438
7
6
October 21, 1973
New Orleans Saints
W 40-0
52,881
8
7
October 28, 1973
Atlanta Falcons
L 17-3
56,825
9
8
November 4, 1973
at Detroit Lions
L 30-20
49,531
10
9
November 11, 1973
at Washington Redskins
L 33-9
54,381
11
10
November 18, 1973
at Los Angeles Rams
L 31-13
78,358
12
11
November 26, 1973
Green Bay Packers
W 20-6
49,244
13
12
December 2, 1973
Philadelphia Eagles
W 38-28
51,155
14
13
December 9, 1973
at New Orleans Saints
L 16-10
62,490
15
14
December 15, 1973
Pittsburgh Steelers
L 37-14
52,252

Questions and formulas:
Question: What is the total attendance before week 1?
Formula: SUM(FILTER(E1, A1<1))
Formula2: SUM(FILTER(E2:E15, A2:A15<1))
Level: easy