How many pilots have been elected to president of the US?
2
1
2
1
2
1
2
1
2
1
3
2
4
1
3
2
4
1
3
2
4
1
3
2
5
4
1
3
2
5
4
1
3
2
5
4
1
3
0
2
5
4
1
3
2
5
4
0
1
3
2
5
4
1
0
3
2
5
4
1
3
0
2
5
4
1
3
2
5
4
0
1
6
3
2
5
4
1
0
6
3
2
5
4
1
6
3
0
2
5
4
1
7
6
3
2
5
4
0
7
6
3
5
4
7
0
6
3
5
4
7
6
3
8
0
5
4
7
6
3
8
5
4
0
7
6
8
5
7
6
8
5
9
7
6
8
5
9
7
6
8
9
7
6
8
11
9
7
6
8
11
9
7
6
8
11
9
7
6
8
11
9
10
7
6
8
11
9
10
7
6
8
11
9
10
13
7
6
8
11
12
9
10
13
7
6
8
11
12
9
10
13
7
8
11
12
9
112
112
66
112