
Rank | Countries/Territories | Count | Percent |
1 | United States | 535 | 48.4% |
2 | Czech Republic | 349 | 31.6% |
3 | China | 80 | 7.2% |
4 | Germany | 77 | 7% |
5 | Brazil | 23 | 2.1% |
6 | Netherlands | 8 | 0.7% |
7 | Iran, Islamic Republic of | 6 | 0.5% |
8 | 4 | 0.4% | |
9 | Korea, Republic of | 3 | 0.3% |
10 | India | 3 | 0.3% |
11 | Ukraine | 2 | 0.2% |
12 | Poland | 2 | 0.2% |
13 | Morocco | 2 | 0.2% |
14 | Hong Kong | 2 | 0.2% |
15 | Australia | 2 | 0.2% |
16 | Azerbaijan | 1 | 0.1% |
17 | Argentina | 1 | 0.1% |
18 | Guatemala | 1 | 0.1% |
19 | Colombia | 1 | 0.1% |
20 | Iraq | 1 | 0.1% |
21 | Jordan | 1 | 0.1% |
22 | New Zealand | 1 | 0.1% |
23 | Taiwan | 1 | 0.1% |