Rank	Countries/Territories	Count	Percent
1	United States	320	40.3%
2	China	201	25.3%
3	Germany	112	14.1%
4	Australia	17	2.1%
5	United Kingdom	12	1.5%
6	Japan	10	1.3%
7	Netherlands	10	1.3%
8	Singapore	9	1.1%
9	Mexico	8	1%
10	Italy	8	1%
11	Bulgaria	8	1%
12	Brazil	7	0.9%
13	Korea, Republic of	7	0.9%
14	Philippines	6	0.8%
15	France	6	0.8%
16	Ireland	6	0.8%
17	Canada	5	0.6%
18	Cyprus	5	0.6%
19	Poland	4	0.5%
20	Iran, Islamic Republic of	3	0.4%
21	India	2	0.3%
22	Argentina	2	0.3%
23	Ghana	2	0.3%
24	Czech Republic	2	0.3%
25	Switzerland	2	0.3%
26	Taiwan	2	0.3%
27	Thailand	2	0.3%
28	Israel	2	0.3%
29	Mongolia	2	0.3%
30	Nigeria	2	0.3%
31	Oman	2	0.3%
32	Norway	1	0.1%
33	Turkey	1	0.1%
34	Ukraine	1	0.1%
35	Russia	1	0.1%
36	South Africa	1	0.1%
37	Ethiopia	1	0.1%
38	Hong Kong	1	0.1%
39	Isle of Man	1	0.1%