Rank	Countries/Territories	Count	Percent
1	United States	460	37.6%
2	China	350	28.6%
3	Germany	136	11.1%
4	Latvia	52	4.3%
5	Netherlands	34	2.8%
6	France	24	2%
7	Australia	18	1.5%
8	Japan	15	1.2%
9	United Kingdom	15	1.2%
10	Singapore	14	1.1%
11	Spain	11	0.9%
12	Russia	8	0.7%
13	Cyprus	8	0.7%
14	Iran, Islamic Republic of	8	0.7%
15	Hong Kong	7	0.6%
16	Canada	7	0.6%
17		7	0.6%
18	Poland	6	0.5%
19	Sweden	5	0.4%
20	Ireland	5	0.4%
21	Taiwan	4	0.3%
22	Indonesia	3	0.2%
23	Saudi Arabia	3	0.2%
24	Belgium	3	0.2%
25	Bangladesh	2	0.2%
26	Israel	2	0.2%
27	Italy	2	0.2%
28	India	2	0.2%
29	Georgia	2	0.2%
30	Turkey	2	0.2%
31	Nigeria	2	0.2%
32	Norway	2	0.2%
33	Pakistan	1	0.1%
34	Korea, Republic of	1	0.1%
35	Lithuania	1	0.1%
36	Argentina	1	0.1%