G S B Total
1. USA 7 6 6 19
2. Spain 4 0 0 4
3. Jamaica 2 3 3 8
4.Great Britain 2 2 1 5
5. Canada 2 0 0 2
6. Ethiopia 1 3 2 6
7. Italy 1 1 1 3
7. Kenya 1 1 1 3
7. Norway 1 1 1 3
10. Australia 1 1 0 2
10. Sweden 1 1 0 2
Note: Top 10 countries