Rank	Countries/Territories	Count	Percent
1	United States	406	37.9%
2	China	227	21.2%
3	Japan	126	11.8%
4	Germany	111	10.4%
5		51	4.8%
6	India	39	3.6%
7	Latvia	15	1.4%
8	Egypt	14	1.3%
9	Hong Kong	10	0.9%
10	Netherlands	10	0.9%
11	Senegal	8	0.7%
12	Romania	5	0.5%
13	United Kingdom	5	0.5%
14	Canada	5	0.5%
15	Ukraine	4	0.4%
16	Spain	4	0.4%
17	Singapore	3	0.3%
18	France	3	0.3%
19	Korea, Republic of	3	0.3%
20	Iran, Islamic Republic of	2	0.2%
21	Iraq	2	0.2%
22	Israel	2	0.2%
23	Italy	2	0.2%
24	Cyprus	2	0.2%
25	Australia	2	0.2%
26	South Africa	2	0.2%
27	Portugal	2	0.2%
28	Thailand	2	0.2%
29	Lithuania	1	0.1%
30	Mongolia	1	0.1%
31	Slovakia	1	0.1%
32	Colombia	1	0.1%