Werbung
Zusammensetzung nach Ländern
| Name | Anteil |
|---|---|
| Canada | 28,23% |
| United States | 21,59% |
| Norway | 14,79% |
| United Kingdom | 12,89% |
| South Africa | 11,20% |
| China | 4,72% |
| Australia | 4,26% |
| Mexico | 3,82% |
| Kazakhstan | 2,02% |