Rank	Countries/Territories	Count	Percent
1	China	306	29.3%
2	United States	203	19.4%
3	Netherlands	109	10.4%
4	Poland	81	7.8%
5	Japan	68	6.5%
6	Mongolia	43	4.1%
7	Bulgaria	33	3.2%
8	Singapore	19	1.8%
9		15	1.4%
10	Germany	15	1.4%
11	France	13	1.2%
12	Korea, Republic of	13	1.2%
13	Nigeria	11	1.1%
14	United Kingdom	11	1.1%
15	South Africa	8	0.8%
16	Canada	8	0.8%
17	Australia	6	0.6%
18	Hong Kong	6	0.6%
19	Iran, Islamic Republic of	6	0.6%
20	Lithuania	6	0.6%
21	Russia	6	0.6%
22	Romania	5	0.5%
23	Philippines	5	0.5%
24	Spain	4	0.4%
25	Bangladesh	4	0.4%
26	Brazil	3	0.3%
27	Iraq	3	0.3%
28	Ireland	3	0.3%
29	Hungary	3	0.3%
30	Ghana	3	0.3%
31	Latvia	3	0.3%
32	Taiwan	3	0.3%
33	Turkey	3	0.3%
34	Viet Nam	3	0.3%
35	Ukraine	2	0.2%
36	Mexico	2	0.2%
37	Peru	2	0.2%
38	India	2	0.2%
39	Argentina	2	0.2%
40	Austria	1	0.1%
41	Sweden	1	0.1%
42	Norway	1	0.1%
43	Mauritius	1	0.1%