Rank	Countries/Territories	Count	Percent
1	United States	312	38%
2	China	169	20.6%
3	Germany	53	6.5%
4	India	44	5.4%
5	Russia	33	4%
6	Korea, Republic of	28	3.4%
7	Japan	24	2.9%
8	Singapore	24	2.9%
9	Senegal	14	1.7%
10	United Kingdom	12	1.5%
11	Latvia	11	1.3%
12	Netherlands	9	1.1%
13	Canada	9	1.1%
14	Denmark	8	1%
15	Italy	8	1%
16	Spain	5	0.6%
17	Hong Kong	5	0.6%
18	Czech Republic	4	0.5%
19	Australia	4	0.5%
20	France	4	0.5%
21	Ireland	4	0.5%
22	Iran, Islamic Republic of	3	0.4%
23	Iraq	3	0.4%
24	Argentina	3	0.4%
25	Brazil	3	0.4%
26	Egypt	3	0.4%
27	Austria	2	0.2%
28	Malaysia	2	0.2%
29	Switzerland	2	0.2%
30	Turkey	2	0.2%
31	Ukraine	1	0.1%
32	Thailand	1	0.1%
33	Moldova, Republic of	1	0.1%
34	New Zealand	1	0.1%
35	Norway	1	0.1%
36	Portugal	1	0.1%
37	Romania	1	0.1%
38	Serbia	1	0.1%
39	Kazakhstan	1	0.1%
40	Colombia	1	0.1%
41	Costa Rica	1	0.1%
42	Cyprus	1	0.1%
43	Indonesia	1	0.1%