Rank	Countries/Territories	Count	Percent
1	United States	405	36.7%
2	China	281	25.5%
3	Japan	157	14.2%
4	Germany	60	5.4%
5	Korea, Republic of	58	5.3%
6	Netherlands	29	2.6%
7	Singapore	27	2.4%
8	Canada	8	0.7%
9	United Kingdom	6	0.5%
10	Hong Kong	6	0.5%
11	Ireland	5	0.5%
12	Cyprus	5	0.5%
13	Taiwan	5	0.5%
14	Russia	5	0.5%
15	Poland	4	0.4%
16	Argentina	4	0.4%
17	Australia	3	0.3%
18	Bangladesh	3	0.3%
19	India	3	0.3%
20	Spain	3	0.3%
21	Tanzania, United Republic of	2	0.2%
22	Slovakia	2	0.2%
23	Pakistan	2	0.2%
24	Mexico	2	0.2%
25	Mongolia	2	0.2%
26	Nepal	2	0.2%
27	Italy	2	0.2%
28	Brazil	2	0.2%
29	Ecuador	2	0.2%
30	France	2	0.2%
31	Georgia	1	0.1%
32	Colombia	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Lithuania	1	0.1%
35	Norway	1	0.1%
36	Viet Nam	1	0.1%