
Rank | Countries/Territories | Count | Percent |
1 | China | 55 | 27.9% |
2 | United States | 49 | 24.9% |
3 | Germany | 19 | 9.6% |
4 | Netherlands | 15 | 7.6% |
5 | Italy | 7 | 3.6% |
6 | France | 7 | 3.6% |
7 | Russia | 7 | 3.6% |
8 | United Kingdom | 6 | 3% |
9 | Ireland | 6 | 3% |
10 | Japan | 4 | 2% |
11 | India | 3 | 1.5% |
12 | Indonesia | 3 | 1.5% |
13 | Korea, Republic of | 2 | 1% |
14 | Egypt | 2 | 1% |
15 | Nigeria | 2 | 1% |
16 | Philippines | 2 | 1% |
17 | Romania | 2 | 1% |
18 | Uzbekistan | 2 | 1% |
19 | Viet Nam | 2 | 1% |
20 | Zambia | 1 | 0.5% |
21 | Canada | 1 | 0.5% |






