How many exclusively "Independent" rulers has South Korea had since 1945?
1
1
2
1
2
1
2
1
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
3
2
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
1
4
3
2
5
0
4
3
5
6
4
0
3
5
6
4
3
0
5
6
4
3
5
0
6
7
4
5
6
7
4
0
9
5
6
7
4
9
5
6
7
4
9
8
5
6
7
4
9
8
5
6
7
4
9
8
5
6
7
9
8
6
7
9
8
6
7
13
9
8
6
7
13
9
8
6
7
13
9
8
6
7
13
9
10
8
6
7
11
13
9
10
8
12
6
7
11
13
9
10
8
12
14
6
7
11
13
9
10
8
12
14
6
7
11
13
9
10
8
12
14
6
7
11
13
9
10
8
12