Rank	Countries/Territories	Count	Percent
1	United States	478	36.2%
2	China	375	28.4%
3	Germany	116	8.8%
4	Japan	80	6.1%
5	Korea, Republic of	39	3%
6	Netherlands	29	2.2%
7	Australia	18	1.4%
8	Canada	15	1.1%
9	France	15	1.1%
10	Singapore	14	1.1%
11	United Kingdom	14	1.1%
12	Ukraine	12	0.9%
13	Switzerland	11	0.8%
14	Spain	10	0.8%
15	Italy	10	0.8%
16	Iran, Islamic Republic of	9	0.7%
17	Cyprus	7	0.5%
18	Czech Republic	7	0.5%
19	Taiwan	7	0.5%
20	India	6	0.5%
21	Argentina	5	0.4%
22	Pakistan	4	0.3%
23	Malaysia	3	0.2%
24	Denmark	3	0.2%
25	Ireland	3	0.2%
26	Hong Kong	3	0.2%
27	Nigeria	3	0.2%
28	Sweden	2	0.2%
29	Turkey	2	0.2%
30	Israel	2	0.2%
31	Brazil	2	0.2%
32	Mexico	2	0.2%
33	Lithuania	2	0.2%
34	Portugal	2	0.2%
35	Russia	2	0.2%
36	Saudi Arabia	1	0.1%
37	Serbia	1	0.1%
38	Poland	1	0.1%
39	Slovakia	1	0.1%
40	Macao	1	0.1%
41	New Zealand	1	0.1%
42	Bangladesh	1	0.1%
43	United Arab Emirates	1	0.1%
44	Sri Lanka	1	0.1%