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Rank | Countries/Territories | Count | Percent |
1 | China | 221 | 59.1% |
2 | United States | 99 | 26.5% |
3 | Bulgaria | 13 | 3.5% |
4 | Germany | 8 | 2.1% |
5 | Singapore | 6 | 1.6% |
6 | Nigeria | 4 | 1.1% |
7 | Japan | 4 | 1.1% |
8 | Korea, Republic of | 4 | 1.1% |
9 | Mongolia | 3 | 0.8% |
10 | Russia | 2 | 0.5% |
11 | Hong Kong | 2 | 0.5% |
12 | Egypt | 2 | 0.5% |
13 | Argentina | 1 | 0.3% |
14 | Australia | 1 | 0.3% |
15 | Iraq | 1 | 0.3% |
16 | Latvia | 1 | 0.3% |
17 | Switzerland | 1 | 0.3% |
18 | Thailand | 1 | 0.3% |
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