Rank	Countries/Territories	Count	Percent
1	United States	861	43.2%
2	China	453	22.8%
3	Germany	180	9%
4	India	101	5.1%
5	Latvia	61	3.1%
6	Netherlands	41	2.1%
7	Ireland	25	1.3%
8	Canada	22	1.1%
9	Korea, Republic of	21	1.1%
10	France	18	0.9%
11	Australia	16	0.8%
12	Cyprus	15	0.8%
13	Japan	15	0.8%
14	Ukraine	13	0.7%
15	United Kingdom	13	0.7%
16	Singapore	13	0.7%
17	Sweden	9	0.5%
18	Taiwan	8	0.4%
19	Russia	8	0.4%
20	Nigeria	8	0.4%
21	Indonesia	7	0.4%
22	Guinea	7	0.4%
23	Bulgaria	7	0.4%
24		6	0.3%
25	Romania	6	0.3%
26	Argentina	5	0.3%
27	Malaysia	5	0.3%
28	Philippines	5	0.3%
29	Poland	4	0.2%
30	Iran, Islamic Republic of	4	0.2%
31	Bangladesh	4	0.2%
32	Saudi Arabia	3	0.2%
33	Switzerland	2	0.1%
34	Turkey	2	0.1%
35	Estonia	2	0.1%
36	Hong Kong	2	0.1%
37	Czech Republic	2	0.1%
38	Iraq	2	0.1%
39	Israel	2	0.1%
40	Italy	2	0.1%
41	Mauritius	1	0.1%
42	Norway	1	0.1%
43	Oman	1	0.1%
44	Egypt	1	0.1%
45	Austria	1	0.1%
46	Guyana	1	0.1%
47	Viet Nam	1	0.1%
48	Tanzania, United Republic of	1	0.1%
49	Thailand	1	0.1%
50	South Africa	1	0.1%
51	Spain	1	0.1%