Rank	Countries/Territories	Count	Percent
1	United States	424	40%
2	China	307	28.9%
3	Germany	106	10%
4	Latvia	63	5.9%
5	Australia	21	2%
6	India	19	1.8%
7	France	17	1.6%
8	Nigeria	13	1.2%
9	Japan	12	1.1%
10	Netherlands	10	0.9%
11	Singapore	9	0.8%
12	Iran, Islamic Republic of	6	0.6%
13	Hong Kong	6	0.6%
14	Canada	5	0.5%
15	United Kingdom	4	0.4%
16	Ukraine	3	0.3%
17	Italy	3	0.3%
18	Chile	3	0.3%
19	Cyprus	3	0.3%
20	Burkina Faso	2	0.2%
21	Korea, Republic of	2	0.2%
22	Norway	2	0.2%
23	Portugal	2	0.2%
24	Russia	2	0.2%
25	Slovakia	2	0.2%
26	Spain	2	0.2%
27	Taiwan	2	0.2%
28	Thailand	2	0.2%
29	Zambia	2	0.2%
30	Viet Nam	1	0.1%
31	Poland	1	0.1%
32	Mongolia	1	0.1%
33	Iraq	1	0.1%
34	Indonesia	1	0.1%
35	Denmark	1	0.1%
36	Bulgaria	1	0.1%