How many NFL teams no longer exist?
49
2
2
2
1
2
3
1
2
3
1
2
3
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
1
2
4
3
5
0
1
2
4
3
5
0
1
2
4
3
5
1
2
4
0
3
5
1
2
4
3
5
0
1
2
4
3
5
0
6
1
2
4
3
5
7
6
1
2
4
0
3
5
7
6
1
2
4
3
5
7
6
1
2
4
3
5
7
6
1
4
3
8
5
7
6
1
4
3
8
5
7
6
1
4
3
8
5
7
6
4
8
5
9
7
6
4
8
5
9
10
7
6
11
4
8
5
9
10
7
6
11
8
9
10
7
6
11
8
9
10
13
7
6
11
12
8
9
10
13
7
6
11
12
8
9
10
13
7
6
11
12
8
9
10
13
7
6
11
12
8
9
10
13
7
6
11
12
8
9
10
13
7
6
11
66
62
66
62
102
132
63