Rank	Countries/Territories	Count	Percent
1	United States	545	42.1%
2	China	269	20.8%
3	Germany	161	12.4%
4	Egypt	48	3.7%
5	India	22	1.7%
6	Ukraine	22	1.7%
7	Slovenia	16	1.2%
8	Turkey	13	1%
9		13	1%
10	Estonia	12	0.9%
11	France	11	0.8%
12	Korea, Republic of	11	0.8%
13	Lithuania	10	0.8%
14	Japan	10	0.8%
15	Singapore	9	0.7%
16	Ireland	8	0.6%
17	Austria	8	0.6%
18	Canada	7	0.5%
19	Hong Kong	7	0.5%
20	Switzerland	7	0.5%
21	United Kingdom	7	0.5%
22	Cyprus	6	0.5%
23	Oman	6	0.5%
24	Netherlands	6	0.5%
25	Norway	5	0.4%
26	Saudi Arabia	4	0.3%
27	Denmark	4	0.3%
28	Ethiopia	4	0.3%
29	South Africa	4	0.3%
30	Sri Lanka	3	0.2%
31	Taiwan	3	0.2%
32	United Arab Emirates	3	0.2%
33	Argentina	3	0.2%
34	Australia	3	0.2%
35	Iran, Islamic Republic of	3	0.2%
36	Malaysia	2	0.2%
37	Lebanon	2	0.2%
38	Pakistan	2	0.2%
39	Romania	2	0.2%
40	Russia	2	0.2%
41	Bosnia and Herzegovina	2	0.2%
42	Indonesia	2	0.2%
43	Thailand	2	0.2%
44	Tanzania, United Republic of	1	0.1%
45	Sweden	1	0.1%
46	Bulgaria	1	0.1%
47	Czech Republic	1	0.1%
48	Belgium	1	0.1%
49	Latvia	1	0.1%