Rank	Countries/Territories	Count	Percent
1	United States	628	37.7%
2	China	521	31.3%
3	Germany	125	7.5%
4	Iran, Islamic Republic of	74	4.4%
5	France	51	3.1%
6	Japan	46	2.8%
7	Canada	25	1.5%
8	Cyprus	23	1.4%
9	India	21	1.3%
10	United Kingdom	20	1.2%
11	Singapore	17	1%
12	Korea, Republic of	16	1%
13	Netherlands	14	0.8%
14	Russia	10	0.6%
15	Hong Kong	9	0.5%
16	Egypt	6	0.4%
17	Australia	5	0.3%
18	Poland	5	0.3%
19	Argentina	4	0.2%
20	Saudi Arabia	4	0.2%
21	Ireland	4	0.2%
22	Malaysia	4	0.2%
23	Italy	3	0.2%
24	Austria	3	0.2%
25	Bangladesh	2	0.1%
26	Croatia	2	0.1%
27	Czech Republic	2	0.1%
28	Latvia	2	0.1%
29	Lithuania	2	0.1%
30	Norway	2	0.1%
31	Pakistan	2	0.1%
32	Switzerland	2	0.1%
33	Taiwan	2	0.1%
34	Ukraine	2	0.1%
35	Viet Nam	1	0.1%
36	Palestine, State of	1	0.1%
37	Slovakia	1	0.1%
38	Israel	1	0.1%
39	Armenia	1	0.1%
40	Belgium	1	0.1%
41	Bulgaria	1	0.1%