How many Call of Duty games have there been?
24
4
4
4
4
5
4
5
4
3
5
4
3
5
4
3
5
4
3
5
4
3
5
8
4
3
5
8
4
3
7
5
8
4
3
7
6
5
2
8
4
3
7
6
5
2
8
4
3
7
1
6
5
2
8
4
3
7
1
6
5
2
8
4
3
7
1
6
5
2
8
4
3
7
1
6
5
2
8
9
4
3
7
1
6
5
2
8
9
4
3
7
1
6
5
2
8
9
3
7
1
6
5
10
2
8
9
3
ten
7
1
6
5
10
2
8
9
13
3
7
1
6
5
ten
10
2
11
8
9
13
3
7
1
6
0
10
2
11
8
ten
9
13
3
7
1
6
10
2
11
8
0
9
13
ten
7
1
6
10
2
11
8
9
13
12
0
7
1
6
ten
10
2
11
8
9
13
12
7
1
6
0
14
10
2
11
8
25
9
13
12
62
7
1
6
14
10
2
11
121
8
25
0