| # | Nation | 1st | 2nd | 3rd | 5th | 7th |
|---|---|---|---|---|---|---|
| 1 |  United States of America
|
6 | 4 | 4 | 4 | 3 |
| 2 |  Canada
|
1 | 1 | 1 | - | 1 |
| 3 |  Brazil
|
1 | - | - | - | - |
| 4 |  Ecuador
|
- | 1 | - | - | - |
| 4 |  Mexico
|
- | 1 | - | - | - |
| 4 |  South Africa
|
- | 1 | - | - | - |