Rank	Countries/Territories	Count	Percent
1	United States	549	50.6%
2	China	253	23.3%
3	Germany	82	7.6%
4	Japan	17	1.6%
5	Netherlands	17	1.6%
6	Iran, Islamic Republic of	16	1.5%
7	India	13	1.2%
8	Singapore	11	1%
9	Turkey	9	0.8%
10	Czech Republic	9	0.8%
11	Egypt	9	0.8%
12	France	8	0.7%
13	Korea, Republic of	8	0.7%
14	Australia	7	0.6%
15	United Kingdom	7	0.6%
16	Cyprus	6	0.6%
17	Canada	6	0.6%
18	Poland	6	0.6%
19	Russia	5	0.5%
20	Portugal	4	0.4%
21	Pakistan	4	0.4%
22	Hong Kong	4	0.4%
23	Indonesia	3	0.3%
24	Algeria	3	0.3%
25	Spain	3	0.3%
26	Nigeria	3	0.3%
27	Ireland	3	0.3%
28	Kazakhstan	2	0.2%
29	Macao	2	0.2%
30	Malaysia	2	0.2%
31	Romania	2	0.2%
32	Brazil	2	0.2%
33	Brunei Darussalam	2	0.2%
34	Bulgaria	1	0.1%
35	Antigua and Barbuda	1	0.1%
36	Argentina	1	0.1%
37	Greece	1	0.1%
38	Philippines	1	0.1%
39	Switzerland	1	0.1%
40	Ukraine	1	0.1%
41	Italy	1	0.1%