Rank	Countries/Territories	Count	Percent
1	China	270	31.7%
2	United States	187	21.9%
3	Canada	73	8.6%
4	Bulgaria	59	6.9%
5	Austria	30	3.5%
6	United Kingdom	28	3.3%
7	Netherlands	24	2.8%
8	Germany	20	2.3%
9	Japan	15	1.8%
10	Russia	14	1.6%
11	Singapore	12	1.4%
12	Norway	11	1.3%
13	Lithuania	11	1.3%
14	Spain	9	1.1%
15	Morocco	8	0.9%
16	Hong Kong	8	0.9%
17	Australia	8	0.9%
18	South Africa	7	0.8%
19	Nigeria	6	0.7%
20	Benin	5	0.6%
21	Denmark	5	0.6%
22	Iran, Islamic Republic of	5	0.6%
23	Ireland	4	0.5%
24	Belgium	4	0.5%
25	Philippines	4	0.5%
26	Poland	3	0.4%
27	Romania	2	0.2%
28	Latvia	2	0.2%
29	Mauritius	2	0.2%
30	Cote D'ivoire	2	0.2%
31	France	2	0.2%
32	Switzerland	2	0.2%
33	Turkey	2	0.2%
34	Ukraine	1	0.1%
35	Georgia	1	0.1%
36	India	1	0.1%
37	Israel	1	0.1%
38	Kenya	1	0.1%
39	Korea, Republic of	1	0.1%
40	Malaysia	1	0.1%
41	Nepal	1	0.1%
42	Sweden	1	0.1%