How many countries have over 500 million people?
2
2
2
2
2
2
2
2
2
3
2
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
5
3
2
1
5
3
2
1
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
2
1
4
5
3
1
4
5
3
1
4
5
3
1
4
5
3
2 countries
1
4
5
3
1
4
5
3
1
4
5
3
1
4
5
3
1
4
5
0
1
2 countries
4
5
3 countries
4
0
5
4
5
4 countries
0
7
4
5
6
0
7
2 countries
4
5
6
10
7
4
0
6
10
7
3 countries
4
0
6
5 countries
2 countries.
10
7
4
2 countries
6
8
4 countries
No
11
10
7
6
8
No
11
10
7
6
8
No
11
10
7
3 countries
6
8
2 countries
No
11
10
7
0 countries
2 countries.
6
8
4 countries
No
11
10
7
5 countries
6
8
9
No
11
10
7
13
6 countries
0 countries
3 countries
6
No countries
8
9
No
11
10
7
No. 1
13
2 countries
7 countries
2 of them
6
8
9
China and India
No
11
10
7
13
4 countries
0 countries
No. 1