Rank	Countries/Territories	Count	Percent
1	United States	484	38.7%
2	China	343	27.4%
3	Germany	130	10.4%
4	Russia	41	3.3%
5	France	32	2.6%
6		25	2%
7	Singapore	22	1.8%
8	Ethiopia	18	1.4%
9	Japan	16	1.3%
10	India	15	1.2%
11	Netherlands	14	1.1%
12	Canada	9	0.7%
13	Brazil	9	0.7%
14	Ghana	7	0.6%
15	Cyprus	7	0.6%
16	Ireland	7	0.6%
17	Iraq	6	0.5%
18	Australia	6	0.5%
19	Argentina	5	0.4%
20	South Africa	5	0.4%
21	Romania	5	0.4%
22	United Kingdom	5	0.4%
23	Switzerland	4	0.3%
24	Hong Kong	3	0.2%
25	Denmark	3	0.2%
26	Austria	2	0.2%
27	Gabon	2	0.2%
28	Indonesia	2	0.2%
29	Spain	2	0.2%
30	Sweden	2	0.2%
31	Turkey	2	0.2%
32	Uganda	2	0.2%
33	Malaysia	2	0.2%
34	Mexico	2	0.2%
35	Ukraine	1	0.1%
36	Norway	1	0.1%
37	Pakistan	1	0.1%
38	Philippines	1	0.1%
39	Israel	1	0.1%
40	Korea, Republic of	1	0.1%
41	Latvia	1	0.1%
42	Georgia	1	0.1%
43	Greece	1	0.1%
44	Burundi	1	0.1%
45	Bangladesh	1	0.1%
46	Ecuador	1	0.1%