How many land surveyors have been elected to president of the US?
3
2
2
2
2
1
2
1
2
1
2
1
2
1
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
2
1
3
4
2
5
1
3
4
2
5
1
3
4
0
5
1
3
4
5
1
0
3
4
5
1
3
4
0
5
3
4
0
5
3
4
5
0
3
4
7
5
3
4
0
7
5
3
4
0
7
5
4
7
5
0
6
4
7
5
6
4
0
7
5
6
4
0
7
5
6
7
5
0
6
8
7
5
6
8
0
7
5
9
6
8
7
5
9
6
8
7
5
9
6
8
7
9
6
8
13
7
9
6
8
13
7
9
6
8
11
13
7
9
6
8
One
11
13
7
9
6
8
One
11
13
7
9
6
8
One
No
11
13
7
9
6
8
One
No
11
13
7
9
10
6
8
One
No
11
2 of them
13
3 of them
9
10