Rank	Countries/Territories	Count	Percent
1	United States	498	32.4%
2	China	374	24.3%
3	Germany	133	8.6%
4	Bulgaria	110	7.2%
5	Netherlands	70	4.6%
6	France	32	2.1%
7	United Kingdom	21	1.4%
8	India	18	1.2%
9	Japan	17	1.1%
10	South Africa	17	1.1%
11	Philippines	16	1%
12	Mauritius	15	1%
13	Australia	15	1%
14	Latvia	14	0.9%
15	Ireland	14	0.9%
16	Canada	13	0.8%
17	Morocco	13	0.8%
18	Turkey	11	0.7%
19	Switzerland	11	0.7%
20	Korea, Republic of	10	0.7%
21	Spain	9	0.6%
22	Hong Kong	8	0.5%
23	Romania	7	0.5%
24	Nigeria	6	0.4%
25	Taiwan	6	0.4%
26	Iran, Islamic Republic of	6	0.4%
27	Mexico	6	0.4%
28	Cote D'ivoire	6	0.4%
29	Kenya	5	0.3%
30	Thailand	5	0.3%
31	Russia	4	0.3%
32	Brazil	4	0.3%
33	Burkina Faso	4	0.3%
34	Bangladesh	3	0.2%
35	Cyprus	3	0.2%
36	Egypt	3	0.2%
37	Moldova, Republic of	3	0.2%
38	Singapore	3	0.2%
39	Norway	2	0.1%
40	Ukraine	2	0.1%
41	Viet Nam	2	0.1%
42	Mongolia	2	0.1%
43	Malaysia	2	0.1%
44	Italy	2	0.1%
45	Indonesia	2	0.1%
46	Greece	2	0.1%
47	Denmark	2	0.1%
48	Austria	2	0.1%
49	Bolivia, Plurinational State of	1	0.1%
50	Estonia	1	0.1%
51	Sweden	1	0.1%
52	Portugal	1	0.1%
53	Slovakia	1	0.1%