Rank	Countries/Territories	Count	Percent
1	United States	436	39.8%
2	China	303	27.6%
3	Germany	191	17.4%
4	France	24	2.2%
5	Ireland	20	1.8%
6	Canada	13	1.2%
7		13	1.2%
8	Japan	11	1%
9	Norway	10	0.9%
10	Singapore	9	0.8%
11	India	9	0.8%
12	Iran, Islamic Republic of	8	0.7%
13	Netherlands	8	0.7%
14	United Kingdom	6	0.5%
15	Sweden	4	0.4%
16	Switzerland	4	0.4%
17	Malaysia	3	0.3%
18	Russia	3	0.3%
19	Australia	3	0.3%
20	Bangladesh	2	0.2%
21	Bulgaria	2	0.2%
22	Argentina	2	0.2%
23	Cyprus	2	0.2%
24	Indonesia	2	0.2%
25	Ukraine	2	0.2%
26	Spain	1	0.1%
27	Pakistan	1	0.1%
28	Poland	1	0.1%
29	Hungary	1	0.1%
30	Kenya	1	0.1%
31	Georgia	1	0.1%