Rank	Countries/Territories	Count	Percent
1	China	497	38.5%
2	United States	487	37.8%
3	Germany	77	6%
4	Netherlands	57	4.4%
5	France	50	3.9%
6	Japan	15	1.2%
7	Ukraine	12	0.9%
8	Singapore	11	0.9%
9	Canada	11	0.9%
10	Australia	10	0.8%
11	Brazil	7	0.5%
12	Argentina	6	0.5%
13	Cyprus	6	0.5%
14	United Kingdom	6	0.5%
15	Iran, Islamic Republic of	4	0.3%
16	Denmark	4	0.3%
17	Hong Kong	3	0.2%
18	Korea, Republic of	3	0.2%
19	Latvia	3	0.2%
20	Russia	3	0.2%
21	Switzerland	2	0.2%
22	Taiwan	2	0.2%
23	Portugal	2	0.2%
24	Romania	2	0.2%
25	Dominican Republic	2	0.2%
26	Austria	2	0.2%
27	Bangladesh	2	0.2%
28	Czech Republic	1	0.1%
29	Luxembourg	1	0.1%
30	Poland	1	0.1%
31	Turkey	1	0.1%