Countries | Number of reports |
---|---|
USA | 66 |
Japan | 32 |
Canada | 15 |
Germany | 14 |
Kenya | 10 |
Brazil – China – France | 9 |
Italy – Russia – Spain – Switzerland – United Kingdom – Tanzania | 8 |
Namibia | 5 |
Austria – Norway – Portugal – Thailand | 4 |
Taiwan – South Korea | 3 |
Antarctica – Argentina – Azerbaijan – Bolivia – Chile –Israel – Poland – Zambia - Zimbabwe | 2 |
Botswana – Denmark – Ethiopia – Finland – Guatemala - Greece – India – Luxembourg – Mexico - South Africa – Sudan – Sweden – Uganda | 1 |