Rank	Countries/Territories	Count	Percent
1	China	254	34.7%
2	United States	215	29.4%
3	Bulgaria	64	8.8%
4	Germany	43	5.9%
5	Switzerland	18	2.5%
6	France	17	2.3%
7	Netherlands	17	2.3%
8	Slovakia	12	1.6%
9	Ireland	10	1.4%
10	Canada	9	1.2%
11	Japan	8	1.1%
12	Hong Kong	8	1.1%
13	India	8	1.1%
14	Singapore	6	0.8%
15	Norway	5	0.7%
16	Lithuania	4	0.5%
17	Cote D'ivoire	4	0.5%
18	Cyprus	4	0.5%
19		3	0.4%
20	Korea, Republic of	3	0.4%
21	Latvia	3	0.4%
22	Colombia	2	0.3%
23	Australia	2	0.3%
24	Bangladesh	2	0.3%
25	Philippines	2	0.3%
26	Sweden	2	0.3%
27	Thailand	2	0.3%
28	Ukraine	1	0.1%
29	Denmark	1	0.1%
30	Ethiopia	1	0.1%
31	Kazakhstan	1	0.1%