Rank	Countries/Territories	Count	Percent
1	United States	472	38.9%
2	China	308	25.4%
3	Germany	116	9.6%
4	Japan	53	4.4%
5	Canada	39	3.2%
6	France	35	2.9%
7	Korea, Republic of	17	1.4%
8	India	16	1.3%
9	Cyprus	11	0.9%
10	Netherlands	11	0.9%
11	Viet Nam	11	0.9%
12	United Kingdom	10	0.8%
13	Turkey	10	0.8%
14	Ukraine	9	0.7%
15	Singapore	9	0.7%
16	Romania	8	0.7%
17	Russia	6	0.5%
18	Malaysia	5	0.4%
19	Switzerland	5	0.4%
20	Taiwan	4	0.3%
21	Lithuania	4	0.3%
22	Belgium	4	0.3%
23	Egypt	4	0.3%
24	Ecuador	3	0.2%
25	Iran, Islamic Republic of	3	0.2%
26	Brazil	3	0.2%
27	Australia	3	0.2%
28	Italy	3	0.2%
29	Philippines	3	0.2%
30	Poland	3	0.2%
31	Sweden	3	0.2%
32	Kazakhstan	2	0.2%
33	Austria	2	0.2%
34	Argentina	2	0.2%
35	Ireland	2	0.2%
36	Israel	2	0.2%
37	Greece	2	0.2%
38	Hong Kong	2	0.2%
39	Denmark	1	0.1%
40	Barbados	1	0.1%
41	Mexico	1	0.1%
42	Moldova, Republic of	1	0.1%
43	Norway	1	0.1%
44	Slovakia	1	0.1%
45	Slovenia	1	0.1%
46	Thailand	1	0.1%
47	United Arab Emirates	1	0.1%