Rank	Countries/Territories	Count	Percent
1	United States	518	35.4%
2	China	514	35.1%
3	Germany	119	8.1%
4	Canada	50	3.4%
5	India	28	1.9%
6	Japan	22	1.5%
7	Korea, Republic of	21	1.4%
8	Netherlands	20	1.4%
9	Russia	19	1.3%
10	Sweden	18	1.2%
11	Iran, Islamic Republic of	16	1.1%
12	Ireland	14	1%
13	United Kingdom	14	1%
14	Brazil	13	0.9%
15	Morocco	13	0.9%
16	France	9	0.6%
17	Singapore	9	0.6%
18	Australia	8	0.5%
19	Hong Kong	4	0.3%
20	Thailand	4	0.3%
21	Taiwan	3	0.2%
22	Ukraine	3	0.2%
23	Argentina	3	0.2%
24	Cyprus	3	0.2%
25	Italy	2	0.1%
26	Iraq	2	0.1%
27	Spain	2	0.1%
28	Malaysia	2	0.1%
29	Mexico	1	0.1%
30	Norway	1	0.1%
31	Peru	1	0.1%
32	Switzerland	1	0.1%
33	Turkey	1	0.1%
34	Czech Republic	1	0.1%
35	Egypt	1	0.1%
36	Finland	1	0.1%
37	Algeria	1	0.1%
38	Belgium	1	0.1%