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Rank | Countries/Territories | Count | Percent |
1 | China | 145 | 45.6% |
2 | United States | 99 | 31.1% |
3 | Japan | 12 | 3.8% |
4 | Singapore | 10 | 3.1% |
5 | Germany | 9 | 2.8% |
6 | Bulgaria | 8 | 2.5% |
7 | Iran, Islamic Republic of | 8 | 2.5% |
8 | Ireland | 6 | 1.9% |
9 | Australia | 5 | 1.6% |
10 | Mexico | 3 | 0.9% |
11 | Switzerland | 2 | 0.6% |
12 | Russia | 2 | 0.6% |
13 | India | 2 | 0.6% |
14 | Argentina | 2 | 0.6% |
15 | Georgia | 1 | 0.3% |
16 | Bangladesh | 1 | 0.3% |
17 | Canada | 1 | 0.3% |
18 | Senegal | 1 | 0.3% |
19 | Mongolia | 1 | 0.3% |
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