Rank	Countries/Territories	Count	Percent
1	United States	336	40.1%
2	China	210	25.1%
3	Germany	119	14.2%
4	Australia	22	2.6%
5	United Kingdom	13	1.6%
6	Netherlands	11	1.3%
7	Japan	10	1.2%
8	Italy	9	1.1%
9	Singapore	9	1.1%
10	Mexico	8	1%
11	Bulgaria	8	1%
12	Brazil	7	0.8%
13	Korea, Republic of	7	0.8%
14	Philippines	6	0.7%
15	Canada	6	0.7%
16	France	6	0.7%
17	Ireland	6	0.7%
18	Cyprus	5	0.6%
19	Poland	4	0.5%
20	South Africa	3	0.4%
21	Iran, Islamic Republic of	3	0.4%
22	India	2	0.2%
23	Argentina	2	0.2%
24	Ghana	2	0.2%
25	Czech Republic	2	0.2%
26	Switzerland	2	0.2%
27	Taiwan	2	0.2%
28	Thailand	2	0.2%
29	Oman	2	0.2%
30	Israel	2	0.2%
31	Mongolia	2	0.2%
32	Nigeria	2	0.2%
33	Norway	1	0.1%
34	Russia	1	0.1%
35	Turkey	1	0.1%
36	Ukraine	1	0.1%
37	Ethiopia	1	0.1%
38	Hong Kong	1	0.1%
39	Isle of Man	1	0.1%