Zusammensetzung nach Ländern
| Name | Anteil |
|---|---|
| China | 17,38% |
| South Africa | 14,68% |
| Canada | 11,50% |
| Australia | 8,67% |
| Germany | 5,72% |
| Brazil | 4,08% |
| Peru | 3,46% |
| Norway | 3,31% |
| United States | 3,22% |
| Sweden | 2,90% |
| United Kingdom | 1,97% |
| Poland | 1,77% |
| Switzerland | 1,50% |
| Sonstige | 19,81% |