Rank	Countries/Territories	Count	Percent
1	United States	618	39.2%
2	China	410	26%
3	Germany	220	13.9%
4	Latvia	41	2.6%
5	Argentina	38	2.4%
6	France	26	1.6%
7	Canada	25	1.6%
8	Switzerland	24	1.5%
9	Japan	23	1.5%
10	India	18	1.1%
11	Netherlands	17	1.1%
12	Singapore	17	1.1%
13	Sweden	14	0.9%
14	United Kingdom	14	0.9%
15	Cyprus	12	0.8%
16	Australia	12	0.8%
17	Korea, Republic of	11	0.7%
18	Taiwan	6	0.4%
19	Lithuania	5	0.3%
20	Hong Kong	3	0.2%
21	Bangladesh	3	0.2%
22	Norway	3	0.2%
23	Russia	3	0.2%
24	Ukraine	2	0.1%
25	Sri Lanka	2	0.1%
26	Iran, Islamic Republic of	2	0.1%
27	Ireland	2	0.1%
28	Mongolia	2	0.1%
29	Brazil	1	0.1%
30	Azerbaijan	1	0.1%
31	Denmark	1	0.1%
32	Georgia	1	0.1%
33	Spain	1	0.1%