Rank	Countries/Territories	Count	Percent
1	United States	271	38%
2	China	210	29.5%
3	Japan	42	5.9%
4	Brazil	18	2.5%
5	India	17	2.4%
6	Germany	17	2.4%
7	Korea, Republic of	15	2.1%
8	Singapore	14	2%
9	Netherlands	9	1.3%
10	Russia	8	1.1%
11	Saudi Arabia	8	1.1%
12	Italy	7	1%
13	Iran, Islamic Republic of	7	1%
14	United Kingdom	7	1%
15	Australia	6	0.8%
16	Taiwan	6	0.8%
17	Malaysia	6	0.8%
18	France	4	0.6%
19	Ireland	3	0.4%
20	Austria	3	0.4%
21	Denmark	3	0.4%
22	Switzerland	3	0.4%
23	Ukraine	3	0.4%
24	Turkey	2	0.3%
25	Pakistan	2	0.3%
26	Palestine, State of	2	0.3%
27	Lithuania	2	0.3%
28	Argentina	1	0.1%
29	Hong Kong	1	0.1%
30	Egypt	1	0.1%
31	Finland	1	0.1%
32	Cote D'ivoire	1	0.1%
33	Croatia	1	0.1%
34	Bahrain	1	0.1%
35	Canada	1	0.1%
36	Philippines	1	0.1%
37	Mexico	1	0.1%
38	Nigeria	1	0.1%
39	Norway	1	0.1%
40	Oman	1	0.1%
41	Thailand	1	0.1%
42	Slovakia	1	0.1%
43	Sweden	1	0.1%
44	United Arab Emirates	1	0.1%
45	Viet Nam	1	0.1%