Zusammensetzung nach Ländern
| Name | Anteil |
|---|---|
| United States | 96,99% |
| Canada | 4,74% |
| United Kingdom | 0,79% |
| France | 0,75% |
| Zambia | 0,58% |
| Australia | 0,45% |
| Malta | 0,41% |
| Japan | 0,36% |
| Netherlands | 0,31% |
| Ireland | 0,28% |
| Italy | 0,27% |
| Jamaica | 0,22% |
| Macao | 0,20% |
| Bermuda | 0,15% |
| Puerto Rico | 0,12% |
| Chile | 0,08% |
| Monaco | 0,08% |
| Switzerland | 0,06% |
| Luxembourg | 0,05% |
| Germany | 0,04% |