Rank	Countries/Territories	Count	Percent
1	United States	378	39.6%
2	Japan	151	15.8%
3	China	144	15.1%
4	Germany	83	8.7%
5	Canada	30	3.1%
6		28	2.9%
7	Russia	19	2%
8	France	16	1.7%
9	Ireland	12	1.3%
10	Netherlands	12	1.3%
11	Singapore	8	0.8%
12	Iran, Islamic Republic of	7	0.7%
13	Brazil	6	0.6%
14	Cyprus	5	0.5%
15	India	5	0.5%
16	Italy	5	0.5%
17	Poland	4	0.4%
18	Israel	4	0.4%
19	Korea, Republic of	4	0.4%
20	United Kingdom	4	0.4%
21	Hungary	3	0.3%
22	Australia	3	0.3%
23	Austria	2	0.2%
24	Hong Kong	2	0.2%
25	Latvia	2	0.2%
26	Mongolia	2	0.2%
27	South Africa	2	0.2%
28	Spain	2	0.2%
29	Taiwan	2	0.2%
30	Ukraine	2	0.2%
31	Viet Nam	2	0.2%
32	Turkey	1	0.1%
33	Portugal	1	0.1%
34	Switzerland	1	0.1%
35	Syrian Arab Republic	1	0.1%
36	Morocco	1	0.1%
37	Malaysia	1	0.1%