Rank	Countries/Territories	Count	Percent
1	United States	430	35.1%
2	China	411	33.6%
3	Germany	88	7.2%
4	Singapore	78	6.4%
5	France	62	5.1%
6	Australia	19	1.6%
7	Iran, Islamic Republic of	18	1.5%
8	Canada	13	1.1%
9	Russia	13	1.1%
10	Cyprus	9	0.7%
11	Mauritius	9	0.7%
12	Norway	8	0.7%
13	Japan	7	0.6%
14	India	5	0.4%
15	Netherlands	4	0.3%
16	Nigeria	4	0.3%
17	Puerto Rico	4	0.3%
18	Romania	4	0.3%
19	Syrian Arab Republic	4	0.3%
20	Switzerland	3	0.2%
21	United Kingdom	3	0.2%
22	Ireland	3	0.2%
23	Algeria	3	0.2%
24	Argentina	3	0.2%
25	Ethiopia	2	0.2%
26	French Polynesia	2	0.2%
27	Latvia	2	0.2%
28	United Arab Emirates	2	0.2%
29	Tanzania, United Republic of	2	0.2%
30	Uganda	2	0.2%
31	Ukraine	1	0.1%
32	Taiwan	1	0.1%
33	Spain	1	0.1%
34	Pakistan	1	0.1%
35	Philippines	1	0.1%
36	Poland	1	0.1%
37	Malaysia	1	0.1%
38	Indonesia	1	0.1%