Rank	Countries/Territories	Count	Percent
1	United States	320	34.6%
2	China	213	23%
3	Japan	105	11.3%
4	Germany	50	5.4%
5	Taiwan	26	2.8%
6	India	23	2.5%
7	Korea, Republic of	21	2.3%
8	Italy	20	2.2%
9	Brazil	17	1.8%
10	Singapore	14	1.5%
11	United Kingdom	14	1.5%
12	Russia	12	1.3%
13		9	1%
14	France	9	1%
15	Ireland	8	0.9%
16	Netherlands	7	0.8%
17	Mexico	6	0.6%
18	Iran, Islamic Republic of	6	0.6%
19	Austria	5	0.5%
20	Cyprus	5	0.5%
21	Saudi Arabia	5	0.5%
22	Canada	4	0.4%
23	Australia	4	0.4%
24	Argentina	3	0.3%
25	Hong Kong	3	0.3%
26	Pakistan	3	0.3%
27	Ukraine	3	0.3%
28	Viet Nam	2	0.2%
29	Poland	2	0.2%
30	Malaysia	2	0.2%
31	Chile	2	0.2%
32	Finland	1	0.1%
33	Hungary	1	0.1%
34	Spain	1	0.1%