
Rank | Countries/Territories | Count | Percent |
1 | United States | 270 | 38.1% |
2 | China | 230 | 32.4% |
3 | Germany | 70 | 9.9% |
4 | France | 38 | 5.4% |
5 | Ireland | 28 | 3.9% |
6 | Netherlands | 15 | 2.1% |
7 | Canada | 14 | 2% |
8 | Sweden | 11 | 1.6% |
9 | Korea, Republic of | 7 | 1% |
10 | Nigeria | 5 | 0.7% |
11 | Russia | 5 | 0.7% |
12 | Singapore | 3 | 0.4% |
13 | Slovakia | 2 | 0.3% |
14 | Taiwan | 2 | 0.3% |
15 | Italy | 2 | 0.3% |
16 | India | 2 | 0.3% |
17 | Iran, Islamic Republic of | 2 | 0.3% |
18 | Cyprus | 1 | 0.1% |
19 | Turkey | 1 | 0.1% |
20 | United Kingdom | 1 | 0.1% |






