Rank	Countries/Territories	Count	Percent
1	United States	474	37.6%
2	China	473	37.5%
3	Germany	77	6.1%
4	Japan	26	2.1%
5	Russia	23	1.8%
6	India	21	1.7%
7	Hong Kong	18	1.4%
8	Brazil	15	1.2%
9	Senegal	11	0.9%
10	Ukraine	10	0.8%
11	Korea, Republic of	9	0.7%
12	Ireland	9	0.7%
13	Australia	9	0.7%
14	Canada	8	0.6%
15	Taiwan	8	0.6%
16	United Kingdom	7	0.6%
17	Argentina	6	0.5%
18	Singapore	6	0.5%
19	Poland	5	0.4%
20	Romania	4	0.3%
21	Netherlands	4	0.3%
22	Egypt	4	0.3%
23	Colombia	3	0.2%
24	France	3	0.2%
25	Turkey	3	0.2%
26	Viet Nam	3	0.2%
27	Switzerland	2	0.2%
28	Thailand	2	0.2%
29	Italy	2	0.2%
30	Bangladesh	2	0.2%
31	Djibouti	2	0.2%
32	Finland	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Cyprus	1	0.1%
35	Czech Republic	1	0.1%
36	Norway	1	0.1%
37	Malaysia	1	0.1%
38	Mexico	1	0.1%
39	Portugal	1	0.1%
40	Slovakia	1	0.1%
41	Sweden	1	0.1%
42	Venezuela, Bolivarian Republic of	1	0.1%