Rank	Countries/Territories	Count	Percent
1	United States	255	39.1%
2	China	199	30.5%
3	Germany	87	13.3%
4	Japan	14	2.1%
5	Korea, Republic of	14	2.1%
6	Ukraine	14	2.1%
7	Spain	10	1.5%
8	India	9	1.4%
9	France	8	1.2%
10	Netherlands	8	1.2%
11	Canada	5	0.8%
12	Taiwan	5	0.8%
13	Australia	4	0.6%
14	Bangladesh	3	0.5%
15	Cyprus	3	0.5%
16	Sweden	3	0.5%
17	Turkey	2	0.3%
18	Hong Kong	2	0.3%
19	Chile	2	0.3%
20	Philippines	2	0.3%
21	Malaysia	2	0.3%
22	Russia	1	0.2%
23	Singapore	1	0.2%