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Rank | Countries/Territories | Count | Percent |
1 | United States | 206 | 51% |
2 | China | 138 | 34.2% |
3 | 15 | 3.7% | |
4 | Japan | 13 | 3.2% |
5 | Germany | 6 | 1.5% |
6 | Singapore | 6 | 1.5% |
7 | Korea, Republic of | 4 | 1% |
8 | Netherlands | 4 | 1% |
9 | France | 4 | 1% |
10 | Canada | 2 | 0.5% |
11 | Ireland | 2 | 0.5% |
12 | Russia | 2 | 0.5% |
13 | Switzerland | 1 | 0.2% |
14 | New Zealand | 1 | 0.2% |
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