Rank	Countries/Territories	Count	Percent
1	China	147	35.5%
2	United States	83	20%
3	Japan	57	13.8%
4	Russia	27	6.5%
5	Belgium	21	5.1%
6	Netherlands	12	2.9%
7	Ukraine	12	2.9%
8	Singapore	11	2.7%
9	France	10	2.4%
10	Brazil	6	1.4%
11	Germany	5	1.2%
12	Australia	4	1%
13	Ireland	4	1%
14		3	0.7%
15	Canada	2	0.5%
16	Hong Kong	2	0.5%
17	Iran, Islamic Republic of	2	0.5%
18	Czech Republic	2	0.5%
19	Egypt	2	0.5%
20	Lithuania	1	0.2%
21	India	1	0.2%