Rank	Countries/Territories	Count	Percent
1	United States	520	35.4%
2	China	431	29.3%
3	Germany	233	15.8%
4	Japan	55	3.7%
5	Canada	51	3.5%
6	Netherlands	28	1.9%
7	India	20	1.4%
8	France	17	1.2%
9	United Kingdom	11	0.7%
10	Singapore	9	0.6%
11	Indonesia	8	0.5%
12	Ireland	8	0.5%
13	Hong Kong	8	0.5%
14	Cyprus	7	0.5%
15	Australia	7	0.5%
16	Sweden	6	0.4%
17	Norway	5	0.3%
18	Spain	4	0.3%
19	Russia	4	0.3%
20	Senegal	4	0.3%
21	Iran, Islamic Republic of	3	0.2%
22	Colombia	3	0.2%
23	Switzerland	3	0.2%
24	Thailand	2	0.1%
25	Costa Rica	2	0.1%
26	Denmark	2	0.1%
27	Ecuador	2	0.1%
28	Finland	2	0.1%
29	Ghana	2	0.1%
30	Romania	2	0.1%
31	Nigeria	1	0.1%
32	Iraq	1	0.1%
33	Israel	1	0.1%
34	Latvia	1	0.1%
35	Lithuania	1	0.1%
36	Georgia	1	0.1%
37	Argentina	1	0.1%
38	Austria	1	0.1%
39	Bangladesh	1	0.1%
40	Bulgaria	1	0.1%
41	Turkey	1	0.1%
42	Viet Nam	1	0.1%