| Collected from 18 countries. Top 20:
Show All Countries  |
| Pakistan | 82 | Ghana | 18 | Norway | 3 | | South Africa | 63 | Germany | 8 | Namibia | 2 | | Egypt | 28 | China | 7 | Austria | 2 | | Tanzania | 26 | Costa Rica | 6 | Saudi Arabia | 1 | | Bangladesh | 23 | Canada | 5 | Thailand | 1 | | Australia | 21 | United States | 5 | Guinea | 1 |
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