Rank	Countries/Territories	Count	Percent
1	United States	302	31.6%
2	China	288	30.1%
3	Japan	84	8.8%
4	Germany	51	5.3%
5	Latvia	30	3.1%
6	Taiwan	25	2.6%
7	Singapore	20	2.1%
8	Canada	18	1.9%
9	Netherlands	17	1.8%
10	Iran, Islamic Republic of	13	1.4%
11	Russia	12	1.3%
12	France	9	0.9%
13	India	9	0.9%
14	Austria	7	0.7%
15	Cyprus	6	0.6%
16	Lithuania	6	0.6%
17	Turkey	6	0.6%
18	Sweden	6	0.6%
19	Australia	5	0.5%
20	Belgium	3	0.3%
21	Thailand	3	0.3%
22	South Africa	3	0.3%
23	Spain	3	0.3%
24	Norway	3	0.3%
25	United Kingdom	3	0.3%
26	Philippines	2	0.2%
27	Poland	2	0.2%
28	Romania	2	0.2%
29	Moldova, Republic of	2	0.2%
30	Denmark	2	0.2%
31	Bangladesh	2	0.2%
32	Ireland	2	0.2%
33	Korea, Republic of	2	0.2%
34	Lao People's Democratic Republic	2	0.2%
35	Italy	1	0.1%
36	Guatemala	1	0.1%
37	Hong Kong	1	0.1%
38	Argentina	1	0.1%
39	Mexico	1	0.1%
40	Sri Lanka	1	0.1%
41	Ukraine	1	0.1%