Rank	Countries/Territories	Count	Percent
1	United States	322	39.3%
2	China	306	37.3%
3	Germany	63	7.7%
4	Singapore	13	1.6%
5	Ghana	10	1.2%
6	Japan	10	1.2%
7	Australia	9	1.1%
8	Iran, Islamic Republic of	8	1%
9	Netherlands	8	1%
10	India	7	0.9%
11	South Africa	6	0.7%
12	Ireland	6	0.7%
13	Canada	6	0.7%
14	Cyprus	4	0.5%
15	Spain	4	0.5%
16	Pakistan	3	0.4%
17	Poland	3	0.4%
18	United Kingdom	3	0.4%
19	Italy	3	0.4%
20	France	3	0.4%
21	Hong Kong	2	0.2%
22	Mexico	2	0.2%
23	Egypt	2	0.2%
24	Bangladesh	2	0.2%
25	Saudi Arabia	2	0.2%
26	Senegal	2	0.2%
27	Norway	2	0.2%
28	Sweden	2	0.2%
29	Syrian Arab Republic	1	0.1%
30	Taiwan	1	0.1%
31	Turkey	1	0.1%
32	Russia	1	0.1%
33	Algeria	1	0.1%
34	Estonia	1	0.1%
35	Georgia	1	0.1%