Rank	Countries/Territories	Count	Percent
1	United States	455	33.9%
2	China	424	31.5%
3	Japan	163	12.1%
4	Germany	134	10%
5	Singapore	26	1.9%
6	Netherlands	17	1.3%
7	France	13	1%
8	India	11	0.8%
9	Canada	11	0.8%
10	Cyprus	8	0.6%
11	Austria	8	0.6%
12	United Kingdom	8	0.6%
13	Taiwan	6	0.4%
14	Poland	5	0.4%
15	Malaysia	4	0.3%
16	Turkey	4	0.3%
17	Ghana	4	0.3%
18	Korea, Republic of	4	0.3%
19	Bulgaria	3	0.2%
20	Mexico	3	0.2%
21	Iran, Islamic Republic of	2	0.1%
22	Puerto Rico	2	0.1%
23	Russia	2	0.1%
24	Thailand	2	0.1%
25	South Africa	2	0.1%
26	Spain	2	0.1%
27	Sweden	2	0.1%
28	Latvia	2	0.1%
29	Bangladesh	2	0.1%
30	Brazil	2	0.1%
31	Argentina	2	0.1%
32	Australia	2	0.1%
33	Denmark	2	0.1%
34	Viet Nam	2	0.1%
35	Finland	1	0.1%
36	Luxembourg	1	0.1%
37	Hong Kong	1	0.1%
38	Switzerland	1	0.1%
39	Portugal	1	0.1%