
Rank | Countries/Territories | Count | Percent |
1 | United States | 47 | 25% |
2 | Germany | 46 | 24.5% |
3 | China | 26 | 13.8% |
4 | Ireland | 9 | 4.8% |
5 | Korea, Republic of | 8 | 4.3% |
6 | United Kingdom | 8 | 4.3% |
7 | Mexico | 5 | 2.7% |
8 | Netherlands | 5 | 2.7% |
9 | Portugal | 5 | 2.7% |
10 | Bulgaria | 5 | 2.7% |
11 | India | 4 | 2.1% |
12 | Sweden | 4 | 2.1% |
13 | Nigeria | 3 | 1.6% |
14 | Hungary | 3 | 1.6% |
15 | Iraq | 2 | 1.1% |
16 | Russia | 2 | 1.1% |
17 | Spain | 2 | 1.1% |
18 | Turkey | 1 | 0.5% |
19 | Lebanon | 1 | 0.5% |
20 | Canada | 1 | 0.5% |
21 | France | 1 | 0.5% |






