Rank	Countries/Territories	Count	Percent
1	United States	472	46.5%
2	China	193	19%
3	Germany	69	6.8%
4	France	34	3.4%
5	Netherlands	30	3%
6	Japan	27	2.7%
7	Bulgaria	25	2.5%
8	Tanzania, United Republic of	22	2.2%
9	Singapore	15	1.5%
10	Spain	14	1.4%
11	Canada	14	1.4%
12	Croatia	10	1%
13	Cyprus	8	0.8%
14	Egypt	8	0.8%
15	Mauritius	6	0.6%
16	South Africa	5	0.5%
17	Turkey	5	0.5%
18	Hong Kong	5	0.5%
19	India	5	0.5%
20	Philippines	4	0.4%
21	Latvia	4	0.4%
22	United Kingdom	4	0.4%
23	Korea, Republic of	3	0.3%
24	Ukraine	3	0.3%
25	Switzerland	3	0.3%
26	Iran, Islamic Republic of	3	0.3%
27	Argentina	3	0.3%
28	Australia	3	0.3%
29	Bangladesh	2	0.2%
30	Cote D'ivoire	2	0.2%
31	Sweden	2	0.2%
32	Morocco	2	0.2%
33	Qatar	2	0.2%
34	Portugal	1	0.1%
35	Taiwan	1	0.1%
36	Angola	1	0.1%
37	Ghana	1	0.1%
38	Belgium	1	0.1%
39	Brazil	1	0.1%
40	Colombia	1	0.1%