How many American presidents have died in office?
8
4
4
2
3
4
2
3
4
2
3
4
2
3
4
2
3
4
2
5
3
4
2
5
3
4
2
5
3
0
4
2
5
7
3
4
2
1
0
5
7
3
4
2
1
0
5
7
3
4
2
1
5
7
3
0
4
2
1
5
7
3
8
6
4
2
1
0
5
7
3
9
8
6
4
2
1
0
5
7
3
9
8
6
4
2
1
5
7
3
9
8
6
0
4
2
1
5
7
3
9
8
6
4
2
1
5
7
3
9
8
6
4
2
1
13
5
7
3
11
9
8
6
2
1
13
5
7
3
11
9
8
6
1
13
5
7
11
9
8
6
1
13
5
7
11
9
8
6
1
13
5
7
11
9
8
6
10
1
13
5
7
11
9
8
6
10
1
13
5
7
11
9
8
6
10
1
12
13
7
11
9
8
6
10
1
12
13
7
11
9
8
6
10
1
12
13
7
11
9
ten