Rank	Countries/Territories	Count	Percent
1	United States	537	35.3%
2	China	419	27.5%
3	Germany	153	10.1%
4	Japan	71	4.7%
5	France	60	3.9%
6	Canada	36	2.4%
7	Iran, Islamic Republic of	28	1.8%
8	United Kingdom	20	1.3%
9	Netherlands	19	1.2%
10	Russia	19	1.2%
11	India	18	1.2%
12	Singapore	16	1.1%
13	Australia	14	0.9%
14	Ireland	13	0.9%
15	Cyprus	9	0.6%
16	Italy	8	0.5%
17	Switzerland	8	0.5%
18	Taiwan	7	0.5%
19	Thailand	7	0.5%
20	Viet Nam	7	0.5%
21	Ukraine	5	0.3%
22	Finland	4	0.3%
23	Colombia	4	0.3%
24	Mauritius	4	0.3%
25	Malaysia	3	0.2%
26	Egypt	3	0.2%
27	Belgium	3	0.2%
28	Brazil	3	0.2%
29	Hong Kong	2	0.1%
30	Indonesia	2	0.1%
31	Mongolia	2	0.1%
32	Korea, Republic of	2	0.1%
33	South Africa	2	0.1%
34	Spain	2	0.1%
35	Yemen	2	0.1%
36	Romania	2	0.1%
37	New Zealand	1	0.1%
38	Pakistan	1	0.1%
39	Poland	1	0.1%
40	Latvia	1	0.1%
41	Lithuania	1	0.1%
42	Bulgaria	1	0.1%
43	Bangladesh	1	0.1%