
Rank | Countries/Territories | Count | Percent |
1 | United States | 170 | 30.1% |
2 | China | 147 | 26% |
3 | Germany | 96 | 17% |
4 | Russia | 28 | 5% |
5 | France | 19 | 3.4% |
6 | Netherlands | 15 | 2.7% |
7 | Sweden | 14 | 2.5% |
8 | Korea, Republic of | 12 | 2.1% |
9 | 10 | 1.8% | |
10 | India | 9 | 1.6% |
11 | Ireland | 8 | 1.4% |
12 | Canada | 8 | 1.4% |
13 | United Kingdom | 7 | 1.2% |
14 | Czech Republic | 4 | 0.7% |
15 | Hong Kong | 4 | 0.7% |
16 | Iran, Islamic Republic of | 2 | 0.4% |
17 | Mexico | 2 | 0.4% |
18 | Singapore | 2 | 0.4% |
19 | South Africa | 2 | 0.4% |
20 | Taiwan | 2 | 0.4% |
21 | Switzerland | 1 | 0.2% |
22 | Italy | 1 | 0.2% |
23 | Japan | 1 | 0.2% |
24 | Cyprus | 1 | 0.2% |






