Rank	Countries/Territories	Count	Percent
1	United States	267	38.5%
2	China	131	18.9%
3	Australia	55	7.9%
4	Germany	44	6.3%
5	Russia	19	2.7%
6	Latvia	13	1.9%
7	Taiwan	12	1.7%
8	Kuwait	11	1.6%
9	Hong Kong	11	1.6%
10	Brazil	10	1.4%
11	Korea, Republic of	10	1.4%
12	Italy	9	1.3%
13	Switzerland	9	1.3%
14	Ireland	7	1%
15	France	6	0.9%
16	Canada	6	0.9%
17	Japan	6	0.9%
18	Turkey	6	0.9%
19	Iran, Islamic Republic of	5	0.7%
20	Netherlands	5	0.7%
21	India	5	0.7%
22	Ukraine	4	0.6%
23	Spain	3	0.4%
24	Argentina	3	0.4%
25	Poland	3	0.4%
26	Romania	3	0.4%
27	Lithuania	3	0.4%
28	Mexico	3	0.4%
29	Saudi Arabia	2	0.3%
30	Iceland	2	0.3%
31	Egypt	2	0.3%
32	Sweden	2	0.3%
33	Thailand	2	0.3%
34	Viet Nam	2	0.3%
35	United Arab Emirates	1	0.1%
36	Ethiopia	1	0.1%
37	Czech Republic	1	0.1%
38	Denmark	1	0.1%
39	Belgium	1	0.1%
40	Indonesia	1	0.1%
41	Israel	1	0.1%
42	Serbia	1	0.1%
43	Singapore	1	0.1%
44	Slovakia	1	0.1%
45	Liechtenstein	1	0.1%
46	Jordan	1	0.1%
47	Kenya	1	0.1%