
Rank | Countries/Territories | Count | Percent |
1 | United States | 322 | 36.5% |
2 | China | 198 | 22.4% |
3 | Germany | 133 | 15.1% |
4 | Ireland | 54 | 6.1% |
5 | Canada | 51 | 5.8% |
6 | Netherlands | 39 | 4.4% |
7 | France | 24 | 2.7% |
8 | Sweden | 15 | 1.7% |
9 | Bulgaria | 13 | 1.5% |
10 | Singapore | 6 | 0.7% |
11 | Cyprus | 5 | 0.6% |
12 | Pakistan | 3 | 0.3% |
13 | Russia | 3 | 0.3% |
14 | Spain | 2 | 0.2% |
15 | Korea, Republic of | 2 | 0.2% |
16 | 2 | 0.2% | |
17 | Indonesia | 2 | 0.2% |
18 | Switzerland | 2 | 0.2% |
19 | Moldova, Republic of | 2 | 0.2% |
20 | Ukraine | 1 | 0.1% |
21 | Mexico | 1 | 0.1% |
22 | New Zealand | 1 | 0.1% |
23 | Nigeria | 1 | 0.1% |






