Rank	Countries/Territories	Count	Percent
1	China	211	30.6%
2	United States	194	28.2%
3	Bulgaria	41	6%
4	Netherlands	34	4.9%
5	Japan	17	2.5%
6	France	13	1.9%
7	United Kingdom	13	1.9%
8	Canada	10	1.5%
9	India	10	1.5%
10	Taiwan	10	1.5%
11	Latvia	9	1.3%
12	Denmark	9	1.3%
13	Ireland	8	1.2%
14	Korea, Republic of	7	1%
15	Germany	7	1%
16	Turkey	7	1%
17	Portugal	7	1%
18	Hong Kong	6	0.9%
19	Australia	5	0.7%
20	Iran, Islamic Republic of	5	0.7%
21	Mauritius	5	0.7%
22	Nigeria	5	0.7%
23	Singapore	5	0.7%
24	South Africa	5	0.7%
25	Spain	5	0.7%
26	Romania	4	0.6%
27	Russia	4	0.6%
28	Lithuania	4	0.6%
29	Bolivia, Plurinational State of	4	0.6%
30	Brazil	4	0.6%
31	Sweden	3	0.4%
32	Pakistan	3	0.4%
33	Argentina	3	0.4%
34	United Arab Emirates	3	0.4%
35	Poland	2	0.3%
36	Morocco	2	0.3%
37	Ukraine	2	0.3%
38	Saudi Arabia	1	0.1%
39	Qatar	1	0.1%
40	Italy	1	0.1%