Rank	Countries/Territories	Count	Percent
1	United States	269	45.8%
2	China	175	29.8%
3	Germany	66	11.2%
4	France	18	3.1%
5	Canada	11	1.9%
6	Ireland	8	1.4%
7	Netherlands	7	1.2%
8	Mexico	3	0.5%
9	Cyprus	3	0.5%
10	India	3	0.5%
11	United Kingdom	3	0.5%
12	Switzerland	3	0.5%
13	Iran, Islamic Republic of	2	0.3%
14	Colombia	2	0.3%
15	Malaysia	2	0.3%
16	Israel	2	0.3%
17	New Zealand	2	0.3%
18	Portugal	2	0.3%
19	Singapore	2	0.3%
20	Sweden	1	0.2%
21	Japan	1	0.2%
22	Georgia	1	0.2%
23	Ukraine	1	0.2%