Rank	Countries/Territories	Count	Percent
1	United States	528	32.9%
2	China	456	28.4%
3	Germany	183	11.4%
4	France	86	5.4%
5	India	63	3.9%
6	Ireland	38	2.4%
7	Norway	25	1.6%
8	Canada	24	1.5%
9	Iran, Islamic Republic of	22	1.4%
10	Cyprus	16	1%
11	Ukraine	16	1%
12	Netherlands	14	0.9%
13	Japan	13	0.8%
14	Korea, Republic of	13	0.8%
15	Switzerland	13	0.8%
16	Russia	12	0.7%
17	United Kingdom	11	0.7%
18	Pakistan	9	0.6%
19	Australia	9	0.6%
20	Malaysia	8	0.5%
21		6	0.4%
22	Ethiopia	4	0.2%
23	Hong Kong	4	0.2%
24	Singapore	4	0.2%
25	Latvia	3	0.2%
26	Lesotho	3	0.2%
27	Lithuania	3	0.2%
28	Colombia	3	0.2%
29	Argentina	2	0.1%
30	Bangladesh	2	0.1%
31	Brazil	2	0.1%
32	Greece	2	0.1%
33	Mongolia	2	0.1%
34	South Africa	2	0.1%
35	Taiwan	2	0.1%
36	Tunisia	2	0.1%
37	Finland	1	0.1%
38	Bulgaria	1	0.1%