Rank	Countries/Territories	Count	Percent
1	United States	328	40%
2	Japan	147	17.9%
3	China	119	14.5%
4	Germany	74	9%
5	Canada	28	3.4%
6	Russia	14	1.7%
7	Ireland	12	1.5%
8	France	11	1.3%
9	Netherlands	10	1.2%
10	Singapore	8	1%
11	Iran, Islamic Republic of	7	0.9%
12	India	5	0.6%
13	Cyprus	5	0.6%
14	Italy	5	0.6%
15	United Kingdom	4	0.5%
16	Poland	4	0.5%
17	Brazil	4	0.5%
18	Israel	4	0.5%
19	Korea, Republic of	3	0.4%
20	Hungary	3	0.4%
21	Australia	3	0.4%
22	Austria	2	0.2%
23	Hong Kong	2	0.2%
24	Mongolia	2	0.2%
25	South Africa	2	0.2%
26	Spain	2	0.2%
27	Viet Nam	2	0.2%
28	Ukraine	2	0.2%
29	Taiwan	2	0.2%
30	Turkey	1	0.1%
31	Switzerland	1	0.1%
32	Syrian Arab Republic	1	0.1%
33	Morocco	1	0.1%
34	Portugal	1	0.1%
35	Malaysia	1	0.1%