
Rank | Countries/Territories | Count | Percent |
1 | United States | 175 | 53.5% |
2 | China | 48 | 14.7% |
3 | Germany | 27 | 8.3% |
4 | Norway | 26 | 8% |
5 | 21 | 6.4% | |
6 | Canada | 4 | 1.2% |
7 | Brazil | 3 | 0.9% |
8 | Iran, Islamic Republic of | 3 | 0.9% |
9 | Netherlands | 3 | 0.9% |
10 | United Kingdom | 3 | 0.9% |
11 | New Zealand | 2 | 0.6% |
12 | Argentina | 2 | 0.6% |
13 | Hong Kong | 2 | 0.6% |
14 | Czech Republic | 2 | 0.6% |
15 | Ireland | 1 | 0.3% |
16 | Kazakhstan | 1 | 0.3% |
17 | Russia | 1 | 0.3% |
18 | Slovakia | 1 | 0.3% |
19 | Taiwan | 1 | 0.3% |
20 | Uzbekistan | 1 | 0.3% |