| Country | Count | Mean |
|---|---|---|
| Austria | 75 | 10.00 |
| United States | 69 | 8.86 |
| United Kingdom | 46 | 9.26 |
| Australia | 37 | 9.03 |
| Canada | 11 | 8.73 |
| Finland | 6 | 9.60 |
| Netherlands | 4 | 9.88 |
| Germany | 3 | 9.83 |
| France | 2 | 9.40 |
| Denmark | 2 | 10.00 |
| Chad | 1 | 10.00 |
| Turkey | 1 | 9.80 |
| Ireland | 1 | 8.00 |
| Slovenia | 1 | 7.00 |
| Italy | 1 | 9.90 |
| Ecuador | 1 | 10.00 |
| Hungary | 1 | 10.00 |
| Japan | 1 | 10.00 |
| Sweden | 1 | 10.00 |
| Bulgaria | 1 | 10.00 |
| Greece | 1 | 10.00 |