
Rank | Countries/Territories | Count | Percent |
1 | China | 252 | 32.3% |
2 | United States | 237 | 30.4% |
3 | Germany | 85 | 10.9% |
4 | France | 38 | 4.9% |
5 | Canada | 30 | 3.8% |
6 | Ireland | 26 | 3.3% |
7 | Korea, Republic of | 26 | 3.3% |
8 | Russia | 26 | 3.3% |
9 | Netherlands | 25 | 3.2% |
10 | Iran, Islamic Republic of | 12 | 1.5% |
11 | United Kingdom | 5 | 0.6% |
12 | Ukraine | 3 | 0.4% |
13 | India | 3 | 0.4% |
14 | Singapore | 3 | 0.4% |
15 | South Africa | 2 | 0.3% |
16 | New Zealand | 2 | 0.3% |
17 | Bangladesh | 2 | 0.3% |
18 | Cyprus | 2 | 0.3% |
19 | Switzerland | 1 | 0.1% |






