Rank	Countries/Territories	Count	Percent
1	United States	445	33.8%
2	China	443	33.7%
3	Germany	101	7.7%
4	France	54	4.1%
5	Japan	44	3.3%
6	Latvia	40	3%
7	India	22	1.7%
8	Korea, Republic of	20	1.5%
9	United Kingdom	18	1.4%
10	Canada	16	1.2%
11	Netherlands	13	1%
12	Iran, Islamic Republic of	12	0.9%
13	Russia	11	0.8%
14	Singapore	9	0.7%
15	Thailand	7	0.5%
16	Spain	6	0.5%
17	Australia	6	0.5%
18	Cyprus	5	0.4%
19	Chile	4	0.3%
20	Colombia	3	0.2%
21	Guinea	3	0.2%
22	Switzerland	3	0.2%
23	Taiwan	3	0.2%
24	Mexico	3	0.2%
25	Mongolia	3	0.2%
26	Norway	3	0.2%
27	Pakistan	2	0.2%
28	Romania	2	0.2%
29	Iraq	2	0.2%
30	Argentina	2	0.2%
31	Bangladesh	2	0.2%
32	Brazil	2	0.2%
33	Turkey	2	0.2%
34	Ireland	1	0.1%
35	Hong Kong	1	0.1%
36	Jordan	1	0.1%
37	Luxembourg	1	0.1%
38	Saudi Arabia	1	0.1%