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Rank | Countries/Territories | Count | Percent |
1 | United States | 337 | 60.9% |
2 | China | 85 | 15.4% |
3 | Bulgaria | 36 | 6.5% |
4 | Japan | 22 | 4% |
5 | 14 | 2.5% | |
6 | Germany | 7 | 1.3% |
7 | United Kingdom | 7 | 1.3% |
8 | Netherlands | 6 | 1.1% |
9 | Singapore | 6 | 1.1% |
10 | Belgium | 6 | 1.1% |
11 | Brazil | 5 | 0.9% |
12 | Taiwan | 5 | 0.9% |
13 | Latvia | 3 | 0.5% |
14 | France | 3 | 0.5% |
15 | Cote D'ivoire | 2 | 0.4% |
16 | Malaysia | 2 | 0.4% |
17 | Mongolia | 2 | 0.4% |
18 | Korea, Republic of | 2 | 0.4% |
19 | India | 1 | 0.2% |
20 | Argentina | 1 | 0.2% |
21 | Australia | 1 | 0.2% |
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