Rank	Countries/Territories	Count	Percent
1	United States	508	42.8%
2	China	266	22.4%
3	Germany	108	9.1%
4	India	58	4.9%
5	Russia	30	2.5%
6	Korea, Republic of	20	1.7%
7	Latvia	17	1.4%
8	Netherlands	16	1.3%
9	Canada	16	1.3%
10	Japan	13	1.1%
11	United Kingdom	13	1.1%
12	Mexico	10	0.8%
13	Singapore	9	0.8%
14	Turkey	9	0.8%
15	Ireland	8	0.7%
16	Cote D'ivoire	8	0.7%
17	Australia	6	0.5%
18	Hong Kong	6	0.5%
19	Spain	6	0.5%
20	Taiwan	5	0.4%
21	Bulgaria	4	0.3%
22	Brazil	3	0.3%
23	Argentina	3	0.3%
24	France	3	0.3%
25	Italy	3	0.3%
26	Libya	3	0.3%
27	Norway	3	0.3%
28	Philippines	3	0.3%
29	Romania	3	0.3%
30	Ukraine	3	0.3%
31	Israel	2	0.2%
32	Iran, Islamic Republic of	2	0.2%
33	Bolivia, Plurinational State of	2	0.2%
34	Austria	2	0.2%
35	Cyprus	2	0.2%
36	Ecuador	2	0.2%
37	Colombia	2	0.2%
38	Greece	1	0.1%
39	Guatemala	1	0.1%
40	Egypt	1	0.1%
41	Azerbaijan	1	0.1%
42	Chile	1	0.1%
43	Pakistan	1	0.1%
44	Morocco	1	0.1%
45	Thailand	1	0.1%
46	Sweden	1	0.1%
47	Slovakia	1	0.1%