Rank	Countries/Territories	Count	Percent
1	United States	546	41.2%
2	China	377	28.5%
3	Germany	105	7.9%
4	Iran, Islamic Republic of	71	5.4%
5	Canada	24	1.8%
6	Japan	23	1.7%
7	France	22	1.7%
8	India	18	1.4%
9	Cyprus	18	1.4%
10	Singapore	17	1.3%
11	United Kingdom	13	1%
12	Netherlands	12	0.9%
13	Korea, Republic of	9	0.7%
14	Russia	8	0.6%
15	Egypt	6	0.5%
16	Hong Kong	5	0.4%
17	Poland	5	0.4%
18	Saudi Arabia	4	0.3%
19	Ireland	4	0.3%
20	Argentina	4	0.3%
21	Australia	4	0.3%
22	Austria	3	0.2%
23	Italy	3	0.2%
24	Malaysia	3	0.2%
25	Lithuania	2	0.2%
26	Pakistan	2	0.2%
27	Switzerland	2	0.2%
28	Taiwan	2	0.2%
29	Ukraine	2	0.2%
30	Croatia	2	0.2%
31	Armenia	1	0.1%
32	Bangladesh	1	0.1%
33	Belgium	1	0.1%
34	Bulgaria	1	0.1%
35	Czech Republic	1	0.1%
36	Slovakia	1	0.1%
37	Israel	1	0.1%
38	Norway	1	0.1%
39	Viet Nam	1	0.1%