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| Rank | Countries/Territories | Count | Percent |
| 1 | Germany | 4 | 17.4% |
| 2 | United States | 4 | 17.4% |
| 3 | China | 3 | 13% |
| 4 | Italy | 3 | 13% |
| 5 | Japan | 3 | 13% |
| 6 | South Korea | 2 | 8.7% |
| 7 | Spain | 1 | 4.3% |
| 8 | Greece | 1 | 4.3% |
| 9 | Poland | 1 | 4.3% |
| 10 | Portugal | 1 | 4.3% |