Rank	Countries/Territories	Count	Percent
1	United States	317	35.6%
2	China	259	29.1%
3	Germany	63	7.1%
4	Ireland	61	6.9%
5	Netherlands	58	6.5%
6	India	20	2.2%
7	Japan	17	1.9%
8	Canada	12	1.3%
9	France	10	1.1%
10	Russia	10	1.1%
11		8	0.9%
12	Australia	8	0.9%
13	Brazil	6	0.7%
14	Cyprus	5	0.6%
15	Singapore	5	0.6%
16	Sweden	3	0.3%
17	Oman	3	0.3%
18	United Kingdom	3	0.3%
19	Italy	3	0.3%
20	Iran, Islamic Republic of	2	0.2%
21	New Zealand	2	0.2%
22	Belgium	2	0.2%
23	Puerto Rico	2	0.2%
24	Tanzania, United Republic of	2	0.2%
25	Sri Lanka	2	0.2%
26	Switzerland	1	0.1%
27	Philippines	1	0.1%
28	Poland	1	0.1%
29	Serbia	1	0.1%
30	Ukraine	1	0.1%
31	Austria	1	0.1%
32	Morocco	1	0.1%