Rank	Countries/Territories	Count	Percent
1	China	473	36.7%
2	United States	441	34.2%
3	Bulgaria	103	8%
4	Germany	81	6.3%
5	France	19	1.5%
6	Singapore	18	1.4%
7	Russia	10	0.8%
8	India	10	0.8%
9	Iran, Islamic Republic of	9	0.7%
10	Ireland	9	0.7%
11	Argentina	9	0.7%
12	Australia	9	0.7%
13	Cyprus	9	0.7%
14	Canada	7	0.5%
15	Japan	7	0.5%
16	Ukraine	7	0.5%
17	Portugal	6	0.5%
18	Spain	6	0.5%
19	Taiwan	6	0.5%
20	Netherlands	5	0.4%
21	Greece	5	0.4%
22	Finland	5	0.4%
23	Indonesia	4	0.3%
24	Mongolia	3	0.2%
25	Brazil	3	0.2%
26	United Kingdom	3	0.2%
27	Hong Kong	2	0.2%
28	Bangladesh	2	0.2%
29	Morocco	2	0.2%
30	North Macedonia	2	0.2%
31	Malaysia	2	0.2%
32	Romania	2	0.2%
33	Saudi Arabia	1	0.1%
34	Tanzania, United Republic of	1	0.1%
35	Turkey	1	0.1%
36	Switzerland	1	0.1%
37	Philippines	1	0.1%
38	Denmark	1	0.1%
39	Colombia	1	0.1%
40	Korea, Republic of	1	0.1%
41	Latvia	1	0.1%