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Rank | Countries/Territories | Count | Percent |
1 | China | 172 | 52% |
2 | United States | 77 | 23.3% |
3 | Bulgaria | 16 | 4.8% |
4 | Germany | 16 | 4.8% |
5 | Japan | 11 | 3.3% |
6 | Netherlands | 6 | 1.8% |
7 | South Africa | 6 | 1.8% |
8 | Switzerland | 5 | 1.5% |
9 | Korea, Republic of | 5 | 1.5% |
10 | Czech Republic | 5 | 1.5% |
11 | Thailand | 2 | 0.6% |
12 | Singapore | 2 | 0.6% |
13 | United Kingdom | 2 | 0.6% |
14 | Australia | 1 | 0.3% |
15 | Nigeria | 1 | 0.3% |
16 | Turkey | 1 | 0.3% |
17 | Ukraine | 1 | 0.3% |
18 | Chile | 1 | 0.3% |
19 | Israel | 1 | 0.3% |
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