Rank	Countries/Territories	Count	Percent
1	United States	499	37.1%
2	China	456	33.9%
3	Germany	88	6.5%
4	Canada	68	5.1%
5	India	45	3.3%
6	Latvia	39	2.9%
7	Netherlands	22	1.6%
8	France	19	1.4%
9	Argentina	19	1.4%
10	Bulgaria	16	1.2%
11	Switzerland	11	0.8%
12	Japan	10	0.7%
13	Australia	7	0.5%
14	United Kingdom	6	0.4%
15	Cyprus	5	0.4%
16	Taiwan	4	0.3%
17	Ukraine	3	0.2%
18	Russia	3	0.2%
19	Singapore	3	0.2%
20	Finland	3	0.2%
21	Israel	3	0.2%
22	Korea, Republic of	3	0.2%
23	Bangladesh	2	0.1%
24	South Africa	2	0.1%
25	Mongolia	2	0.1%
26	Thailand	1	0.1%
27	Saudi Arabia	1	0.1%
28	Viet Nam	1	0.1%
29	Indonesia	1	0.1%
30	Ireland	1	0.1%
31	Malaysia	1	0.1%
32	Mali	1	0.1%