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