Rank	Countries/Territories	Count	Percent
1	United States	593	38.8%
2	China	379	24.8%
3	Japan	160	10.5%
4	Germany	142	9.3%
5		54	3.5%
6	India	45	2.9%
7	Korea, Republic of	19	1.2%
8	Latvia	18	1.2%
9	Egypt	15	1%
10	Hong Kong	15	1%
11	Netherlands	10	0.7%
12	Senegal	10	0.7%
13	United Kingdom	8	0.5%
14	France	7	0.5%
15	Singapore	6	0.4%
16	Romania	5	0.3%
17	Canada	5	0.3%
18	Cyprus	4	0.3%
19	Australia	4	0.3%
20	Ukraine	4	0.3%
21	Spain	4	0.3%
22	Thailand	2	0.1%
23	South Africa	2	0.1%
24	Norway	2	0.1%
25	Portugal	2	0.1%
26	Iran, Islamic Republic of	2	0.1%
27	Iraq	2	0.1%
28	Israel	2	0.1%
29	Italy	2	0.1%
30	Lithuania	1	0.1%
31	Mongolia	1	0.1%
32	Colombia	1	0.1%
33	Slovakia	1	0.1%