Rank	Countries/Territories	Count	Percent
1	United States	553	47.4%
2	China	228	19.5%
3	Germany	129	11.1%
4	India	42	3.6%
5	France	19	1.6%
6	Netherlands	18	1.5%
7	Turkey	17	1.5%
8	Korea, Republic of	14	1.2%
9	Romania	14	1.2%
10	Cyprus	13	1.1%
11	Switzerland	11	0.9%
12	Russia	10	0.9%
13	Pakistan	9	0.8%
14	Philippines	8	0.7%
15	Canada	8	0.7%
16	Ireland	7	0.6%
17	Singapore	7	0.6%
18	Japan	7	0.6%
19	Ukraine	6	0.5%
20	United Kingdom	5	0.4%
21	Serbia	4	0.3%
22	Australia	4	0.3%
23	Bangladesh	3	0.3%
24	Brazil	3	0.3%
25	Iran, Islamic Republic of	3	0.3%
26	Poland	3	0.3%
27	Malaysia	2	0.2%
28	Spain	2	0.2%
29	Italy	2	0.2%
30	Ethiopia	2	0.2%
31	Denmark	2	0.2%
32	Equatorial Guinea	1	0.1%
33	Austria	1	0.1%
34	Hungary	1	0.1%
35	Mexico	1	0.1%
36	Mongolia	1	0.1%
37	Jordan	1	0.1%
38	Latvia	1	0.1%
39	New Zealand	1	0.1%
40	Nigeria	1	0.1%
41	Norway	1	0.1%
42	Uzbekistan	1	0.1%
43	Viet Nam	1	0.1%