2
Sources
3
1
1
4
1
0
0
2
1
2
2
2
2
1
1
4
1
3
2
4
2
1
1
2
1
4
2
3
2
4
4
1
5
1
2
1
3
1
2
2
1
0
0
3
1
3
2
2
1
