Rank	Countries/Territories	Count	Percent
1	United States	269	35.5%
2	China	250	33%
3	Germany	37	4.9%
4	Canada	23	3%
5		19	2.5%
6	Iran, Islamic Republic of	18	2.4%
7	United Kingdom	18	2.4%
8	Sweden	15	2%
9	Netherlands	11	1.5%
10	Singapore	11	1.5%
11	Ireland	11	1.5%
12	France	11	1.5%
13	Japan	9	1.2%
14	Australia	8	1.1%
15	Russia	7	0.9%
16	Switzerland	6	0.8%
17	Cyprus	5	0.7%
18	Finland	3	0.4%
19	Bangladesh	3	0.4%
20	India	3	0.4%
21	South Africa	3	0.4%
22	Portugal	3	0.4%
23	Turkey	2	0.3%
24	Ukraine	2	0.3%
25	Hong Kong	2	0.3%
26	Argentina	2	0.3%
27	Brazil	2	0.3%
28	Belgium	1	0.1%
29	Latvia	1	0.1%
30	Thailand	1	0.1%
31	Spain	1	0.1%