How many capital cities have populations over 10 million?
5
1
1
1
2
1
2
1
3
2
1
3
2
1
3
4
2
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
1
3
4
2
5
6
1
3
4
2
5
6
1
3
4
2
5
6
7
1
3
4
2
5
6
7
3
4
2
5
6
7
3
4
2
5
6
7
3
4
5
6
7
3
4
5
6
7
4
5
6
8
7
4
5
6
8
9
7
10
5
6
8
9
7
10
6
8
9
7
10
11
6
8
9
7
10
11
6
8
9
7
10
11
6
8
9
7
10
11
6
8
9
7
10
12
11
6
8
9
7
10
12
11
13
6
8
9
7
10
12
11
13
6
8
9
7
10
12
11
13
6
8
9
7
10
12
11
13
8
9
7
14
10
128
128
5 Cities
135
128