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Rank | Countries/Territories | Count | Percent |
1 | United States | 328 | 38.5% |
2 | China | 312 | 36.6% |
3 | Germany | 127 | 14.9% |
4 | Iran, Islamic Republic of | 15 | 1.8% |
5 | Japan | 14 | 1.6% |
6 | Canada | 13 | 1.5% |
7 | Netherlands | 10 | 1.2% |
8 | Cyprus | 5 | 0.6% |
9 | Australia | 5 | 0.6% |
10 | Singapore | 4 | 0.5% |
11 | United Kingdom | 4 | 0.5% |
12 | Turkey | 3 | 0.4% |
13 | Ukraine | 3 | 0.4% |
14 | Taiwan | 2 | 0.2% |
15 | Argentina | 2 | 0.2% |
16 | Korea, Republic of | 2 | 0.2% |
17 | Mongolia | 1 | 0.1% |
18 | France | 1 | 0.1% |
19 | Russia | 1 | 0.1% |
20 | India | 1 | 0.1% |
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