Rank	Countries/Territories	Count	Percent
1	United States	366	39.9%
2	China	348	37.9%
3	Germany	64	7%
4	Singapore	13	1.4%
5	Japan	12	1.3%
6	Netherlands	10	1.1%
7	Ghana	10	1.1%
8	Australia	9	1%
9	South Africa	9	1%
10	Iran, Islamic Republic of	8	0.9%
11	India	7	0.8%
12	Ireland	6	0.7%
13	Canada	6	0.7%
14	Cyprus	4	0.4%
15	Spain	4	0.4%
16	United Kingdom	3	0.3%
17	Pakistan	3	0.3%
18	Poland	3	0.3%
19	Italy	3	0.3%
20	France	3	0.3%
21	Hong Kong	2	0.2%
22	Egypt	2	0.2%
23	Bangladesh	2	0.2%
24	Portugal	2	0.2%
25	Norway	2	0.2%
26	Mexico	2	0.2%
27	Saudi Arabia	2	0.2%
28	Senegal	2	0.2%
29	Sweden	2	0.2%
30	Syrian Arab Republic	1	0.1%
31	Taiwan	1	0.1%
32	Turkey	1	0.1%
33	Russia	1	0.1%
34	Algeria	1	0.1%
35	Estonia	1	0.1%
36	Georgia	1	0.1%
37	Greece	1	0.1%