How many cities in the U.S. have a population greater than one million?
10
1
3
1
3
4
2
1
3
4
2
1
3
4
5
2
1
3
4
5
2
1
3
4
5
2
1
3
4
5
2
1
3
4
5
2
1
3
4
5
2
1
3
4
5
2
1
6
3
4
5
2
7
1
6
3
4
5
2
7
1
6
3
4
5
2
7
0
1
6
3
4
5
2
7
1
0
6
3
4
5
2
7
1
6
3
4
5
2
0
7
1
8
6
3
4
5
2
9
7
1
8
6
3
4
5
2
9
7
1
8
6
3
4
5
2
9
7
1
8
6
3
4
5
2
9
7
8
6
4
5
2
9
7
8
6
5
9
7
8
6
10
5
9
11
7
8
6
10
9
11
7
8
6
10
9
11
7
8
6
10
9
11
7
8
6
12
10
9
11
7
13
8
6
12
10
9
11
7
13
8
6
12
10
9
11
7
13
8
6
12
10
9
11
128
128
128
102
62
128
66