Rank	Countries/Territories	Count	Percent
1	United States	426	28.6%
2	China	352	23.7%
3	Japan	178	12%
4	Germany	111	7.5%
5	India	83	5.6%
6	Iran, Islamic Republic of	45	3%
7	Singapore	26	1.7%
8	United Kingdom	23	1.5%
9	Taiwan	22	1.5%
10	Sweden	20	1.3%
11	Netherlands	20	1.3%
12	Pakistan	19	1.3%
13	Russia	17	1.1%
14	Australia	16	1.1%
15	Canada	12	0.8%
16	Mexico	11	0.7%
17	Poland	10	0.7%
18	France	10	0.7%
19	Brazil	9	0.6%
20	Turkey	9	0.6%
21	Cyprus	8	0.5%
22	Indonesia	5	0.3%
23	Saudi Arabia	5	0.3%
24	Spain	4	0.3%
25	Malaysia	4	0.3%
26	Ireland	4	0.3%
27	Belgium	4	0.3%
28	Austria	3	0.2%
29	Colombia	3	0.2%
30	Czech Republic	3	0.2%
31	Korea, Republic of	3	0.2%
32	South Africa	3	0.2%
33	Ukraine	3	0.2%
34	Uganda	2	0.1%
35	Slovakia	2	0.1%
36	Latvia	2	0.1%
37	Nigeria	2	0.1%
38	Norway	2	0.1%
39	Ghana	2	0.1%
40	Egypt	1	0.1%
41	Italy	1	0.1%
42	Bangladesh	1	0.1%
43	Argentina	1	0.1%
44	Peru	1	0.1%