Rank	Countries/Territories	Count	Percent
1	United States	517	50%
2	China	201	19.4%
3	Germany	88	8.5%
4	Czech Republic	50	4.8%
5	Japan	34	3.3%
6	France	24	2.3%
7	Singapore	13	1.3%
8	Hong Kong	11	1.1%
9	Canada	11	1.1%
10	Mexico	9	0.9%
11	Netherlands	8	0.8%
12	Latvia	7	0.7%
13	Australia	7	0.7%
14		5	0.5%
15	Cyprus	5	0.5%
16	Russia	5	0.5%
17	Argentina	4	0.4%
18	Malaysia	4	0.4%
19	Poland	3	0.3%
20	India	3	0.3%
21	Iran, Islamic Republic of	3	0.3%
22	United Kingdom	3	0.3%
23	Ukraine	2	0.2%
24	Pakistan	2	0.2%
25	Switzerland	2	0.2%
26	Taiwan	2	0.2%
27	Macao	2	0.2%
28	Lithuania	1	0.1%
29	Norway	1	0.1%
30	Mongolia	1	0.1%
31	Tunisia	1	0.1%
32	Turkey	1	0.1%
33	Sweden	1	0.1%
34	Korea, Republic of	1	0.1%
35	Bangladesh	1	0.1%
36	Brazil	1	0.1%
37	Cote D'ivoire	1	0.1%