Rank	Countries/Territories	Count	Percent
1	United States	527	42.8%
2	China	350	28.4%
3	Germany	102	8.3%
4		35	2.8%
5	Turkey	25	2%
6	France	25	2%
7	Canada	20	1.6%
8	Australia	19	1.5%
9	Japan	19	1.5%
10	Netherlands	18	1.5%
11	United Kingdom	17	1.4%
12	Spain	13	1.1%
13	Singapore	9	0.7%
14	Iran, Islamic Republic of	7	0.6%
15	Bulgaria	7	0.6%
16	Latvia	5	0.4%
17	Cyprus	5	0.4%
18	Ghana	4	0.3%
19	Cote D'ivoire	3	0.2%
20	Russia	3	0.2%
21	Senegal	2	0.2%
22	Poland	2	0.2%
23	Romania	2	0.2%
24	Bangladesh	2	0.2%
25	Bolivia, Plurinational State of	2	0.2%
26	Mauritius	2	0.2%
27	Mongolia	2	0.2%
28	Greece	1	0.1%
29	Ethiopia	1	0.1%
30	Brazil	1	0.1%
31	Norway	1	0.1%
32	South Africa	1	0.1%