Rank	Countries/Territories	Count	Percent
1	United States	100	39.4%
2	China	73	28.7%
3	Germany	23	9.1%
4	Netherlands	10	3.9%
5	Japan	9	3.5%
6	Spain	6	2.4%
7	Turkey	4	1.6%
8	Ukraine	2	0.8%
9	Viet Nam	2	0.8%
10	Taiwan	2	0.8%
11	Lithuania	2	0.8%
12	Nigeria	2	0.8%
13	Qatar	2	0.8%
14	Romania	2	0.8%
15	Singapore	2	0.8%
16	Iran, Islamic Republic of	2	0.8%
17	Canada	2	0.8%
18	Cyprus	2	0.8%
19	Czech Republic	2	0.8%
20	France	2	0.8%
21	Australia	1	0.4%
22	Israel	1	0.4%
23	Sweden	1	0.4%