How many presidents have there been?
46
4
4
5
4
5
4
5
3
2
4
5
3
2
4
5
3
0
1
2
4
5
3
1
2
0
4
5
3
1
2
4
5
0
3
1
2
4
5
3
0
1
2
4
5
3
1
2
0
4
5
3
1
2
4
5
0
3
1
6
2
4
5
3
0
1
6
2
4
5
3
1
6
2
7
0
4
5
3
1
6
2
7
4
5
0
3
1
6
2
7
11
4
5
3
8
0
9
1
6
2
7
11
4
5
3
8
9
1
6
2
7
11
4
5
3
8
9
1
6
2
7
11
5
3
8
9
1
6
2
13
7
11
3
8
12
10
9
1
6
2
13
7
11
3
8
12
10
9
1
6
2
13
7
11
8
12
10
9
1
6
13
7
11
8
12
10
9
1
6
13
7
11
8
12
10
9
6
14
13
7
11
8
12
10
9
6
14
13
7
11
16
8
12
10
9
66
66
61
62
59