Rank	Countries/Territories	Count	Percent
1	United States	531	38.3%
2	China	373	26.9%
3	Germany	116	8.4%
4	Russia	45	3.2%
5	Japan	42	3%
6	Netherlands	39	2.8%
7	Australia	37	2.7%
8	India	28	2%
9	Canada	20	1.4%
10	Iran, Islamic Republic of	19	1.4%
11	Spain	16	1.2%
12	Portugal	14	1%
13	Korea, Republic of	12	0.9%
14	France	10	0.7%
15	United Kingdom	9	0.6%
16	Brazil	8	0.6%
17	Italy	8	0.6%
18	Ireland	8	0.6%
19	Lithuania	7	0.5%
20	Greece	5	0.4%
21	Hong Kong	5	0.4%
22	Cyprus	4	0.3%
23	Turkey	4	0.3%
24	Austria	3	0.2%
25	Ghana	2	0.1%
26	Ethiopia	2	0.1%
27	Finland	2	0.1%
28	Singapore	2	0.1%
29	Slovakia	2	0.1%
30	Poland	2	0.1%
31	Viet Nam	1	0.1%
32	Sweden	1	0.1%
33	Switzerland	1	0.1%
34	Romania	1	0.1%
35	Pakistan	1	0.1%
36	Philippines	1	0.1%
37	Latvia	1	0.1%
38	Israel	1	0.1%
39	Belgium	1	0.1%
40	Albania	1	0.1%
41	Argentina	1	0.1%
42	Czech Republic	1	0.1%
43	Bulgaria	1	0.1%