Rank	Countries/Territories	Count	Percent
1	United States	222	34.5%
2	China	183	28.4%
3	Germany	56	8.7%
4	Canada	36	5.6%
5	Japan	17	2.6%
6	Taiwan	17	2.6%
7	Netherlands	13	2%
8	United Kingdom	11	1.7%
9	Ukraine	8	1.2%
10	Lithuania	7	1.1%
11	Malaysia	6	0.9%
12	Poland	6	0.9%
13	India	6	0.9%
14	France	6	0.9%
15	Australia	5	0.8%
16	Ireland	5	0.8%
17	Singapore	4	0.6%
18	New Zealand	3	0.5%
19	Nigeria	3	0.5%
20	Iran, Islamic Republic of	3	0.5%
21	Sweden	3	0.5%
22	Korea, Republic of	3	0.5%
23	Cyprus	3	0.5%
24	Brazil	2	0.3%
25	Bulgaria	2	0.3%
26	Turkey	2	0.3%
27	South Africa	2	0.3%
28	Spain	2	0.3%
29	Sri Lanka	1	0.2%
30	Mongolia	1	0.2%
31	Switzerland	1	0.2%
32	Czech Republic	1	0.2%
33	Ethiopia	1	0.2%
34	Isle of Man	1	0.2%
35	Indonesia	1	0.2%
36	Hong Kong	1	0.2%