Rank	Countries/Territories	Count	Percent
1	United States	544	37.7%
2	China	422	29.2%
3	Germany	154	10.7%
4	Canada	71	4.9%
5	Netherlands	38	2.6%
6	Japan	35	2.4%
7	Korea, Republic of	28	1.9%
8	France	24	1.7%
9	Norway	14	1%
10	Singapore	10	0.7%
11	Ireland	9	0.6%
12	Ukraine	9	0.6%
13	India	8	0.6%
14	Iran, Islamic Republic of	8	0.6%
15	Cyprus	7	0.5%
16	Australia	7	0.5%
17	Taiwan	7	0.5%
18	United Kingdom	6	0.4%
19	Spain	6	0.4%
20	Italy	5	0.3%
21	Poland	5	0.3%
22	Hong Kong	5	0.3%
23	Thailand	3	0.2%
24	Romania	2	0.1%
25	Latvia	2	0.1%
26	Malaysia	2	0.1%
27	Mauritius	2	0.1%
28	Bangladesh	2	0.1%
29		1	0.1%
30	Georgia	1	0.1%
31	Hungary	1	0.1%
32	Russia	1	0.1%
33	Serbia	1	0.1%
34	Pakistan	1	0.1%
35	Paraguay	1	0.1%
36	Switzerland	1	0.1%