Rank	Countries/Territories	Count	Percent
1	United States	475	45.2%
2	China	179	17%
3	Germany	107	10.2%
4	United Kingdom	42	4%
5	Iran, Islamic Republic of	38	3.6%
6	Canada	22	2.1%
7	India	17	1.6%
8	France	13	1.2%
9	Australia	13	1.2%
10	Japan	11	1%
11	Korea, Republic of	9	0.9%
12	Netherlands	9	0.9%
13	Brazil	7	0.7%
14	Cyprus	7	0.7%
15	Singapore	7	0.7%
16	Russia	6	0.6%
17	Indonesia	6	0.6%
18	Malaysia	5	0.5%
19	Hong Kong	5	0.5%
20	Saint Lucia	5	0.5%
21	Slovakia	4	0.4%
22	Thailand	4	0.4%
23	Viet Nam	4	0.4%
24	Mexico	4	0.4%
25	Ireland	4	0.4%
26	Italy	3	0.3%
27	Pakistan	3	0.3%
28	Belgium	3	0.3%
29	Ukraine	3	0.3%
30	Saudi Arabia	2	0.2%
31	South Africa	2	0.2%
32	Spain	2	0.2%
33	Switzerland	2	0.2%
34	Argentina	2	0.2%
35	Bangladesh	2	0.2%
36	Bulgaria	2	0.2%
37	Chile	2	0.2%
38	Colombia	2	0.2%
39	Norway	2	0.2%
40	Romania	2	0.2%
41	Lithuania	2	0.2%
42	Mongolia	1	0.1%
43	Philippines	1	0.1%
44	Poland	1	0.1%
45	Puerto Rico	1	0.1%
46	Hungary	1	0.1%
47	Denmark	1	0.1%
48	Egypt	1	0.1%
49	Finland	1	0.1%
50	Taiwan	1	0.1%
51	Slovenia	1	0.1%
52	Turkey	1	0.1%