Rank	Countries/Territories	Count	Percent
1	United States	420	35.4%
2	China	330	27.8%
3	Germany	79	6.7%
4	Iran, Islamic Republic of	51	4.3%
5	United Kingdom	41	3.5%
6	Canada	23	1.9%
7	India	21	1.8%
8	Japan	20	1.7%
9	Puerto Rico	20	1.7%
10	Ireland	15	1.3%
11	Turkey	14	1.2%
12	Russia	9	0.8%
13	Netherlands	9	0.8%
14	Mexico	8	0.7%
15	Greece	8	0.7%
16	Cyprus	8	0.7%
17	Singapore	8	0.7%
18	Australia	7	0.6%
19	Brazil	7	0.6%
20	Romania	7	0.6%
21	Malaysia	6	0.5%
22	Sweden	6	0.5%
23	Spain	5	0.4%
24	Morocco	5	0.4%
25	Lebanon	5	0.4%
26	Italy	5	0.4%
27	Indonesia	5	0.4%
28	France	4	0.3%
29	Switzerland	4	0.3%
30	Hong Kong	3	0.3%
31	Egypt	3	0.3%
32	Korea, Republic of	3	0.3%
33	Luxembourg	3	0.3%
34	Pakistan	3	0.3%
35	Palestine, State of	3	0.3%
36	Norway	2	0.2%
37	Colombia	2	0.2%
38	Argentina	2	0.2%
39	Bahrain	2	0.2%
40	Ukraine	2	0.2%
41	Thailand	1	0.1%
42	South Africa	1	0.1%
43	Belgium	1	0.1%
44	Ghana	1	0.1%
45	Philippines	1	0.1%
46	Poland	1	0.1%
47	Myanmar	1	0.1%