Rank	Countries/Territories	Count	Percent
1	United States	665	44.4%
2	China	307	20.5%
3	Germany	222	14.8%
4	Canada	45	3%
5	France	30	2%
6	Netherlands	27	1.8%
7	India	23	1.5%
8	Greece	17	1.1%
9	Australia	15	1%
10	Singapore	13	0.9%
11	Ukraine	13	0.9%
12	Hong Kong	12	0.8%
13	Japan	11	0.7%
14	Cyprus	9	0.6%
15	Czech Republic	8	0.5%
16	Spain	8	0.5%
17	Iran, Islamic Republic of	7	0.5%
18	Belgium	7	0.5%
19	Brazil	7	0.5%
20	Mongolia	5	0.3%
21	Turkey	4	0.3%
22	Mexico	4	0.3%
23	Ireland	3	0.2%
24	Korea, Republic of	3	0.2%
25	Norway	3	0.2%
26	Azerbaijan	3	0.2%
27	Taiwan	3	0.2%
28	United Kingdom	3	0.2%
29	Iceland	2	0.1%
30	Indonesia	2	0.1%
31	Argentina	2	0.1%
32	Peru	2	0.1%
33	Philippines	2	0.1%
34	Switzerland	2	0.1%
35	Slovenia	2	0.1%
36	New Zealand	2	0.1%
37	Nigeria	1	0.1%
38	Lithuania	1	0.1%
39	Portugal	1	0.1%
40	Saudi Arabia	1	0.1%
41	Bangladesh	1	0.1%
42	Ethiopia	1	0.1%