Rank	Countries/Territories	Count	Percent
1	United States	484	34.5%
2	China	306	21.8%
3	Germany	141	10.1%
4	Belgium	72	5.1%
5	India	62	4.4%
6	Iran, Islamic Republic of	37	2.6%
7	Canada	25	1.8%
8	United Kingdom	20	1.4%
9	Ireland	19	1.4%
10	Japan	16	1.1%
11	Singapore	16	1.1%
12	Lithuania	15	1.1%
13	Netherlands	15	1.1%
14	Philippines	15	1.1%
15	Norway	12	0.9%
16	Australia	12	0.9%
17	Hong Kong	12	0.9%
18	France	9	0.6%
19	Cyprus	9	0.6%
20	Saudi Arabia	9	0.6%
21	Ukraine	9	0.6%
22	Thailand	8	0.6%
23	Malaysia	8	0.6%
24	Taiwan	6	0.4%
25	Romania	6	0.4%
26	Russia	5	0.4%
27	Argentina	5	0.4%
28	Brazil	5	0.4%
29	Nepal	4	0.3%
30	Switzerland	3	0.2%
31	Turkey	3	0.2%
32	Mexico	3	0.2%
33	Korea, Republic of	3	0.2%
34	Indonesia	3	0.2%
35	Lebanon	2	0.1%
36	Pakistan	2	0.1%
37	Poland	2	0.1%
38	Armenia	2	0.1%
39	Algeria	2	0.1%
40	Greece	2	0.1%
41	Sweden	2	0.1%
42	Slovenia	1	0.1%
43	South Africa	1	0.1%
44	Uganda	1	0.1%
45	Denmark	1	0.1%
46	Ethiopia	1	0.1%
47	Colombia	1	0.1%
48	Chile	1	0.1%
49	Morocco	1	0.1%
50	Luxembourg	1	0.1%
51	Jordan	1	0.1%
52	Israel	1	0.1%