Rank	Countries/Territories	Count	Percent
1	United States	348	41.3%
2	China	182	21.6%
3	Germany	75	8.9%
4	Japan	59	7%
5	France	27	3.2%
6	Netherlands	21	2.5%
7	Sweden	13	1.5%
8	Singapore	12	1.4%
9	Australia	11	1.3%
10		10	1.2%
11	Canada	9	1.1%
12	India	9	1.1%
13	Switzerland	9	1.1%
14	Russia	6	0.7%
15	Ireland	5	0.6%
16	United Kingdom	5	0.6%
17	Cyprus	5	0.6%
18	Benin	5	0.6%
19	Austria	5	0.6%
20	Bulgaria	3	0.4%
21	Iran, Islamic Republic of	3	0.4%
22	Viet Nam	2	0.2%
23	Spain	2	0.2%
24	Italy	2	0.2%
25	Saudi Arabia	2	0.2%
26	Serbia	2	0.2%
27	Nigeria	1	0.1%
28	Poland	1	0.1%
29	Korea, Republic of	1	0.1%
30	Malaysia	1	0.1%
31	Turkey	1	0.1%
32	Zambia	1	0.1%
33	Hong Kong	1	0.1%
34	Hungary	1	0.1%
35	Argentina	1	0.1%
36	Bangladesh	1	0.1%
37	Belgium	1	0.1%