Rank	Countries/Territories	Count	Percent
1	United States	516	44.4%
2	China	262	22.5%
3	Germany	87	7.5%
4	India	56	4.8%
5	Korea, Republic of	35	3%
6	United Kingdom	23	2%
7	Netherlands	22	1.9%
8	Japan	22	1.9%
9	Canada	15	1.3%
10	Egypt	10	0.9%
11	Mongolia	10	0.9%
12	Russia	9	0.8%
13	Singapore	9	0.8%
14	Cyprus	7	0.6%
15	Indonesia	6	0.5%
16	Nigeria	6	0.5%
17	Romania	5	0.4%
18	Iran, Islamic Republic of	5	0.4%
19	Ireland	5	0.4%
20	Australia	4	0.3%
21	France	4	0.3%
22	Pakistan	4	0.3%
23	Hong Kong	4	0.3%
24	Taiwan	4	0.3%
25	Thailand	3	0.3%
26	Morocco	3	0.3%
27	Poland	3	0.3%
28	Nepal	2	0.2%
29	Italy	2	0.2%
30	Malaysia	2	0.2%
31	Kuwait	2	0.2%
32	Tunisia	2	0.2%
33	Turkey	2	0.2%
34	Sweden	2	0.2%
35	Tanzania, United Republic of	1	0.1%
36	Latvia	1	0.1%
37	Lithuania	1	0.1%
38	Israel	1	0.1%
39	Greece	1	0.1%
40	Mexico	1	0.1%
41	Norway	1	0.1%
42	Portugal	1	0.1%
43	Spain	1	0.1%
44	Serbia	1	0.1%