Rank	Countries/Territories	Count	Percent
1	United States	544	43.3%
2	China	256	20.4%
3	Germany	158	12.6%
4	Netherlands	58	4.6%
5	France	42	3.3%
6	India	23	1.8%
7	Japan	22	1.8%
8	Canada	17	1.4%
9	Ireland	14	1.1%
10	Singapore	13	1%
11	Brazil	11	0.9%
12	Cyprus	9	0.7%
13	Taiwan	9	0.7%
14	Korea, Republic of	8	0.6%
15	Sweden	6	0.5%
16	Ethiopia	6	0.5%
17	Costa Rica	6	0.5%
18	Turkey	6	0.5%
19	Argentina	5	0.4%
20	Malaysia	5	0.4%
21	Mexico	4	0.3%
22	Switzerland	3	0.2%
23	Romania	2	0.2%
24	Russia	2	0.2%
25	Hungary	2	0.2%
26	Australia	2	0.2%
27	Bangladesh	2	0.2%
28	Bulgaria	2	0.2%
29	Denmark	2	0.2%
30	Ecuador	2	0.2%
31	Egypt	2	0.2%
32	Tanzania, United Republic of	2	0.2%
33	Ukraine	1	0.1%
34	Viet Nam	1	0.1%
35	Yemen	1	0.1%
36	Georgia	1	0.1%
37	Belgium	1	0.1%
38	Botswana	1	0.1%
39	Lithuania	1	0.1%
40	Pakistan	1	0.1%
41	Peru	1	0.1%
42	Spain	1	0.1%