Rank	Countries/Territories	Count	Percent
1	China	398	38.9%
2	United States	349	34.1%
3	Germany	77	7.5%
4	Bulgaria	23	2.2%
5	Australia	19	1.9%
6	Japan	19	1.9%
7	France	17	1.7%
8	Russia	15	1.5%
9	Singapore	13	1.3%
10	Denmark	13	1.3%
11	Netherlands	12	1.2%
12	Iran, Islamic Republic of	11	1.1%
13	Korea, Republic of	10	1%
14	Switzerland	8	0.8%
15	United Kingdom	6	0.6%
16	Canada	6	0.6%
17	Austria	3	0.3%
18	Cyprus	3	0.3%
19	Malaysia	3	0.3%
20	Ireland	3	0.3%
21	Sweden	3	0.3%
22	Turkey	2	0.2%
23	Ukraine	2	0.2%
24	Indonesia	2	0.2%
25	Bangladesh	2	0.2%
26	Iraq	1	0.1%
27	Hong Kong	1	0.1%
28	India	1	0.1%
29	South Africa	1	0.1%