Rank	Countries/Territories	Count	Percent
1	China	139	35.3%
2	United States	106	26.9%
3	Bulgaria	22	5.6%
4	Netherlands	11	2.8%
5	United Kingdom	11	2.8%
6	Taiwan	10	2.5%
7	Japan	10	2.5%
8	Denmark	9	2.3%
9	Ireland	8	2%
10	Korea, Republic of	7	1.8%
11	Canada	6	1.5%
12	France	5	1.3%
13	Germany	5	1.3%
14	Iran, Islamic Republic of	5	1.3%
15	Hong Kong	4	1%
16	Bolivia, Plurinational State of	4	1%
17	India	3	0.8%
18	Australia	3	0.8%
19	Pakistan	3	0.8%
20	Singapore	3	0.8%
21	South Africa	3	0.8%
22	Spain	2	0.5%
23	Sweden	2	0.5%
24	Ukraine	2	0.5%
25	Mauritius	2	0.5%
26	Morocco	2	0.5%
27	Poland	2	0.5%
28	Brazil	2	0.5%
29	Portugal	1	0.3%
30	Qatar	1	0.3%
31	Latvia	1	0.3%