
Rank | Countries/Territories | Count | Percent |
1 | United States | 135 | 52.5% |
2 | Germany | 49 | 19.1% |
3 | China | 47 | 18.3% |
4 | 8 | 3.1% | |
5 | Brazil | 5 | 1.9% |
6 | Czech Republic | 3 | 1.2% |
7 | Korea, Republic of | 2 | 0.8% |
8 | Mexico | 1 | 0.4% |
9 | Morocco | 1 | 0.4% |
10 | Netherlands | 1 | 0.4% |
11 | Pakistan | 1 | 0.4% |
12 | Russia | 1 | 0.4% |
13 | Australia | 1 | 0.4% |
14 | Hong Kong | 1 | 0.4% |
15 | India | 1 | 0.4% |