Rank	Countries/Territories	Count	Percent
1	United States	423	46.3%
2	China	267	29.2%
3	Germany	86	9.4%
4	Ireland	37	4%
5	Japan	19	2.1%
6	Singapore	12	1.3%
7	Ukraine	12	1.3%
8	Korea, Republic of	8	0.9%
9	Cyprus	8	0.9%
10	Canada	6	0.7%
11	France	5	0.5%
12	Iran, Islamic Republic of	4	0.4%
13	Italy	3	0.3%
14	Bangladesh	3	0.3%
15	Hungary	3	0.3%
16	Netherlands	3	0.3%
17	United Kingdom	2	0.2%
18	Switzerland	2	0.2%
19	Tunisia	2	0.2%
20	Bulgaria	2	0.2%
21	Australia	1	0.1%
22	Finland	1	0.1%
23	Luxembourg	1	0.1%
24	Mexico	1	0.1%
25	Turkey	1	0.1%
26	Norway	1	0.1%
27	Russia	1	0.1%