How many vice presidents have gone on to become US president?
15
1
2
1
2
1
2
1
2
1
2
3
1
2
3
1
4
2
3
1
4
2
3
1
4
2
3
1
4
2
5
3
1
4
2
5
3
1
4
2
5
3
1
4
2
0
5
3
1
4
2
5
3
0
1
4
2
5
3
1
0
4
2
5
3
1
4
2
0
5
3
1
4
2
5
3
0
1
4
2
5
3
1
0
6
4
2
5
3
6
4
0
5
3
6
4
7
5
3
0
6
4
7
5
3
0
6
4
7
5
3
6
4
0
7
5
8
6
4
7
5
9
8
6
7
5
9
8
6
7
5
9
8
6
7
5
9
8
6
7
9
8
6
7
11
9
8
6
7
11
9
8
6
7
11
9
8
6
7
11
9
8
6
10
7
11
9
8
13
6
10
7
11
9
8
13
6
10
7
11
9
8
13
6
10
7
11
12
9
8
13
6
10
7
11
12
9
112
ONE
66
112