Rank	Countries/Territories	Count	Percent
1	United States	381	28.9%
2	Japan	288	21.8%
3	China	264	20%
4	Germany	93	7.1%
5	Singapore	46	3.5%
6	Korea, Republic of	44	3.3%
7		25	1.9%
8	Taiwan	24	1.8%
9	Iran, Islamic Republic of	22	1.7%
10	India	19	1.4%
11	Russia	18	1.4%
12	Netherlands	15	1.1%
13	Canada	12	0.9%
14	Morocco	8	0.6%
15	Poland	7	0.5%
16	Spain	5	0.4%
17	Norway	4	0.3%
18	Cyprus	4	0.3%
19	Hong Kong	4	0.3%
20	France	3	0.2%
21	Australia	3	0.2%
22	Mexico	3	0.2%
23	Thailand	3	0.2%
24	Palestine, State of	3	0.2%
25	South Africa	3	0.2%
26	Sweden	2	0.2%
27	Malaysia	2	0.2%
28	Pakistan	2	0.2%
29	Portugal	2	0.2%
30	United Kingdom	2	0.2%
31	Turkey	1	0.1%
32	Bangladesh	1	0.1%
33	Brazil	1	0.1%
34	Argentina	1	0.1%
35	Denmark	1	0.1%
36	Israel	1	0.1%
37	Liechtenstein	1	0.1%
38	Lithuania	1	0.1%