Rank	Countries/Territories	Count	Percent
1	United States	482	33.1%
2	China	367	25.2%
3	Germany	108	7.4%
4	Japan	74	5.1%
5	Korea, Republic of	67	4.6%
6		49	3.4%
7	France	44	3%
8	Russia	38	2.6%
9	Latvia	36	2.5%
10	United Kingdom	22	1.5%
11	Netherlands	19	1.3%
12	India	11	0.8%
13	Brazil	9	0.6%
14	Canada	9	0.6%
15	Singapore	9	0.6%
16	Australia	8	0.5%
17	Senegal	8	0.5%
18	Greece	7	0.5%
19	Hong Kong	7	0.5%
20	Colombia	7	0.5%
21	Egypt	6	0.4%
22	Ireland	6	0.4%
23	Romania	6	0.4%
24	Viet Nam	5	0.3%
25	Spain	5	0.3%
26	Burkina Faso	5	0.3%
27	Cyprus	4	0.3%
28	Argentina	3	0.2%
29	Portugal	3	0.2%
30	Taiwan	3	0.2%
31	Turkey	3	0.2%
32	Switzerland	2	0.1%
33	Slovakia	2	0.1%
34	Norway	2	0.1%
35	Peru	2	0.1%
36	Poland	2	0.1%
37	Italy	2	0.1%
38	Iran, Islamic Republic of	2	0.1%
39	Lithuania	2	0.1%
40	Mexico	2	0.1%
41	Nepal	2	0.1%
42	Hungary	2	0.1%
43	Finland	1	0.1%
44	Ecuador	1	0.1%
45	Ukraine	1	0.1%
46	United Arab Emirates	1	0.1%