Rank	Countries/Territories	Count	Percent
1	United States	331	37.3%
2	China	255	28.7%
3	Germany	71	8%
4	Mexico	23	2.6%
5	Australia	22	2.5%
6	Japan	19	2.1%
7	France	14	1.6%
8	United Kingdom	14	1.6%
9	Hong Kong	13	1.5%
10	Canada	13	1.5%
11	Singapore	13	1.5%
12	India	12	1.4%
13	Iran, Islamic Republic of	11	1.2%
14	Korea, Republic of	9	1%
15	Netherlands	7	0.8%
16	Spain	7	0.8%
17	Poland	7	0.8%
18	Romania	7	0.8%
19	Turkey	6	0.7%
20	Belgium	6	0.7%
21	Brazil	3	0.3%
22	Cyprus	3	0.3%
23	Italy	3	0.3%
24	Ireland	2	0.2%
25	Indonesia	2	0.2%
26	Brunei Darussalam	2	0.2%
27	Switzerland	2	0.2%
28	Taiwan	2	0.2%
29	Ukraine	1	0.1%
30	New Zealand	1	0.1%
31	Norway	1	0.1%
32	Pakistan	1	0.1%
33	Lao People's Democratic Republic	1	0.1%
34	Lithuania	1	0.1%
35	Austria	1	0.1%
36	Czech Republic	1	0.1%
37	Argentina	1	0.1%