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Rank | Countries/Territories | Count | Percent |
1 | United States | 61 | 50% |
2 | China | 36 | 29.5% |
3 | Singapore | 7 | 5.7% |
4 | Canada | 5 | 4.1% |
5 | Japan | 4 | 3.3% |
6 | Netherlands | 3 | 2.5% |
7 | Germany | 3 | 2.5% |
8 | 1 | 0.8% | |
9 | Bulgaria | 1 | 0.8% |
10 | United Kingdom | 1 | 0.8% |
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