How many presidents served in the navy?
6
2
2
2
3
2
3
2
3
2
4
1
3
2
4
1
3
2
4
1
3
2
4
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
2
5
4
1
3
2
5
4
1
3
2
5
4
1
3
2
5
4
1
3
2
5
4
1
3
5
7
4
1
0
3
5
7
4
1
3
0
5
7
4
1
6
5
0
7
4
1
6
5
7
4
1
0
6
5
7
0
6
5
7
6
5
0
7
6
5
7
8
0
6
5
7
8
6
5
7
8
6
5
7
8
6
7
8
6
9
7
8
6
9
7
8
6
9
7
8
6
9
11
7
8
6
13
9
11
7
8
6
13
9
11
7
8
6
13
9
11
7
8
6
13
9
11
8
10
No
6
13
Two
9
11
8
10
No
6
13
Two
9
11
8
10
No
13
Two
9
11
8
No
229