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Rank | Countries/Territories | Count | Percent |
1 | United States | 274 | 42.3% |
2 | China | 160 | 24.7% |
3 | Germany | 124 | 19.1% |
4 | Japan | 30 | 4.6% |
5 | Netherlands | 8 | 1.2% |
6 | Korea, Republic of | 7 | 1.1% |
7 | France | 7 | 1.1% |
8 | Cyprus | 6 | 0.9% |
9 | Singapore | 5 | 0.8% |
10 | South Africa | 4 | 0.6% |
11 | Romania | 4 | 0.6% |
12 | Taiwan | 3 | 0.5% |
13 | India | 3 | 0.5% |
14 | Egypt | 2 | 0.3% |
15 | Argentina | 2 | 0.3% |
16 | Canada | 2 | 0.3% |
17 | Czech Republic | 1 | 0.2% |
18 | Iran, Islamic Republic of | 1 | 0.2% |
19 | United Kingdom | 1 | 0.2% |
20 | Malaysia | 1 | 0.2% |
21 | Mongolia | 1 | 0.2% |
22 | Russia | 1 | 0.2% |
23 | Viet Nam | 1 | 0.2% |
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