
Rank | Countries/Territories | Count | Percent |
1 | United States | 348 | 32.5% |
2 | China | 310 | 28.9% |
3 | Germany | 118 | 11% |
4 | France | 95 | 8.9% |
5 | Canada | 35 | 3.3% |
6 | Netherlands | 31 | 2.9% |
7 | Russia | 21 | 2% |
8 | Japan | 18 | 1.7% |
9 | Sweden | 15 | 1.4% |
10 | Korea, Republic of | 13 | 1.2% |
11 | United Kingdom | 11 | 1% |
12 | Cyprus | 9 | 0.8% |
13 | India | 8 | 0.7% |
14 | Lithuania | 7 | 0.7% |
15 | Ireland | 6 | 0.6% |
16 | Spain | 3 | 0.3% |
17 | Turkey | 3 | 0.3% |
18 | Malawi | 3 | 0.3% |
19 | Guinea | 3 | 0.3% |
20 | Mexico | 2 | 0.2% |
21 | Nepal | 2 | 0.2% |
22 | Norway | 2 | 0.2% |
23 | Romania | 2 | 0.2% |
24 | Tanzania, United Republic of | 2 | 0.2% |
25 | Ukraine | 1 | 0.1% |
26 | Singapore | 1 | 0.1% |
27 | Indonesia | 1 | 0.1% |
28 | Dominican Republic | 1 | 0.1% |






