How many presidents have never been affiliated with any political party?
1
2
2
2
2
3
2
3
2
4
3
2
4
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
7
2
1
4
5
3
7
2
1
4
5
0
3
7
2
1
4
5
3
0
7
2
1
4
5
3
7
2
0
1
4
5
3
7
6
2
1
4
5
0
3
7
6
2
1
8
4
5
3
7
6
1
8
4
5
3
7
6
9
1
13
8
4
5
3
7
6
9
1
13
8
4
5
3
7
6
9
1
13
8
4
5
11
7
6
9
1
13
8
4
5
11
7
6
9
1
13
8
5
11
7
6
9
1
13
8
5
11
7
6
9
13
8
11
7
6
9
10
13
8
11
7
6
9
10
13
8
11
7
6
9
10
13
8
12
11
7
6
9
10
13
8
12
11
7
6
9
10
13
8
12
11
6
9
10
13
213