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Rank | Countries/Territories | Count | Percent |
1 | United States | 224 | 36.2% |
2 | China | 209 | 33.8% |
3 | Germany | 72 | 11.7% |
4 | Nigeria | 22 | 3.6% |
5 | Canada | 16 | 2.6% |
6 | Japan | 13 | 2.1% |
7 | Netherlands | 9 | 1.5% |
8 | United Kingdom | 8 | 1.3% |
9 | Iran, Islamic Republic of | 6 | 1% |
10 | Ireland | 5 | 0.8% |
11 | France | 5 | 0.8% |
12 | India | 4 | 0.6% |
13 | Colombia | 4 | 0.6% |
14 | Cyprus | 3 | 0.5% |
15 | Australia | 3 | 0.5% |
16 | Singapore | 3 | 0.5% |
17 | Switzerland | 3 | 0.5% |
18 | Taiwan | 3 | 0.5% |
19 | Argentina | 2 | 0.3% |
20 | Brazil | 1 | 0.2% |
21 | Turkey | 1 | 0.2% |
22 | Mexico | 1 | 0.2% |
23 | Mongolia | 1 | 0.2% |
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