Rank	Countries/Territories	Count	Percent
1	United States	204	35.4%
2	China	192	33.3%
3	Germany	52	9%
4	France	31	5.4%
5	Russia	18	3.1%
6	Canada	17	2.9%
7	Japan	16	2.8%
8	Netherlands	14	2.4%
9	Ireland	4	0.7%
10	Argentina	3	0.5%
11	Cyprus	3	0.5%
12	India	3	0.5%
13	Singapore	3	0.5%
14	Switzerland	2	0.3%
15	Indonesia	2	0.3%
16	Iran, Islamic Republic of	2	0.3%
17	Italy	2	0.3%
18	Malaysia	2	0.3%
19	Portugal	2	0.3%
20	Qatar	2	0.3%
21	Norway	1	0.2%
22	Dominican Republic	1	0.2%
23	Ukraine	1	0.2%