Rank	Countries/Territories	Count	Percent
1	China	465	36.7%
2	United States	453	35.7%
3	Germany	91	7.2%
4	Bulgaria	33	2.6%
5	France	32	2.5%
6	Japan	28	2.2%
7	Australia	20	1.6%
8	Russia	16	1.3%
9	Denmark	15	1.2%
10	Singapore	13	1%
11	Netherlands	12	0.9%
12	Korea, Republic of	12	0.9%
13	United Kingdom	11	0.9%
14	Iran, Islamic Republic of	11	0.9%
15	Switzerland	8	0.6%
16	Canada	6	0.5%
17	Hong Kong	5	0.4%
18	Belgium	4	0.3%
19	Austria	3	0.2%
20	Cyprus	3	0.2%
21	Sweden	3	0.2%
22	Ireland	3	0.2%
23	Malaysia	3	0.2%
24	South Africa	2	0.2%
25	Latvia	2	0.2%
26	Turkey	2	0.2%
27	Ukraine	2	0.2%
28	Bangladesh	2	0.2%
29	Brazil	2	0.2%
30	India	2	0.2%
31	Indonesia	2	0.2%
32	Iraq	1	0.1%
33	Cambodia	1	0.1%