Rank	Countries/Territories	Count	Percent
1	United States	342	33.3%
2	China	310	30.2%
3	Germany	87	8.5%
4	Egypt	44	4.3%
5	India	37	3.6%
6	Netherlands	22	2.1%
7	Latvia	21	2%
8	Japan	17	1.7%
9	Russia	14	1.4%
10	Australia	9	0.9%
11	Singapore	9	0.9%
12	Ireland	8	0.8%
13	Iran, Islamic Republic of	7	0.7%
14	Taiwan	7	0.7%
15	United Kingdom	7	0.7%
16	Switzerland	6	0.6%
17	Canada	6	0.6%
18	Poland	6	0.6%
19	Mexico	6	0.6%
20	Korea, Republic of	5	0.5%
21	Peru	5	0.5%
22	Malaysia	4	0.4%
23	Senegal	4	0.4%
24	Austria	4	0.4%
25	Indonesia	3	0.3%
26	Norway	3	0.3%
27	Slovenia	3	0.3%
28	South Africa	3	0.3%
29	Spain	3	0.3%
30	Tunisia	2	0.2%
31	Ukraine	2	0.2%
32	Portugal	2	0.2%
33	Nigeria	2	0.2%
34	Ghana	2	0.2%
35	Ecuador	2	0.2%
36	Cyprus	2	0.2%
37	Denmark	1	0.1%
38	France	1	0.1%
39	Bulgaria	1	0.1%
40	Argentina	1	0.1%
41	Italy	1	0.1%
42	Hong Kong	1	0.1%
43	Montenegro	1	0.1%
44	Lithuania	1	0.1%
45	Serbia	1	0.1%
46	Pakistan	1	0.1%
47	Turkey	1	0.1%
48	Thailand	1	0.1%