Rank	Countries/Territories	Count	Percent
1	United States	244	36.7%
2	Japan	128	19.3%
3	China	95	14.3%
4	Germany	63	9.5%
5	Canada	28	4.2%
6	Ireland	12	1.8%
7	Netherlands	10	1.5%
8	Russia	8	1.2%
9	Singapore	8	1.2%
10	France	7	1.1%
11	Iran, Islamic Republic of	7	1.1%
12	Italy	5	0.8%
13	India	5	0.8%
14	Israel	4	0.6%
15	Brazil	4	0.6%
16	Poland	4	0.6%
17	United Kingdom	4	0.6%
18	Cyprus	3	0.5%
19	Korea, Republic of	3	0.5%
20	Hong Kong	2	0.3%
21	Australia	2	0.3%
22	Austria	2	0.3%
23	Ukraine	2	0.3%
24	Taiwan	2	0.3%
25	Viet Nam	2	0.3%
26	Mongolia	2	0.3%
27	South Africa	2	0.3%
28	Spain	1	0.2%
29	Switzerland	1	0.2%
30	Morocco	1	0.2%
31	Portugal	1	0.2%
32	Turkey	1	0.2%
33	Malaysia	1	0.2%