Rank	Countries/Territories	Count	Percent
1	United States	253	37.2%
2	China	204	30%
3	Germany	99	14.5%
4	France	21	3.1%
5	Canada	20	2.9%
6	Japan	17	2.5%
7	Portugal	14	2.1%
8	Lithuania	10	1.5%
9	Korea, Republic of	7	1%
10	Singapore	7	1%
11	Ukraine	3	0.4%
12	Netherlands	3	0.4%
13	Peru	3	0.4%
14	Australia	3	0.4%
15	Argentina	2	0.3%
16	Cyprus	2	0.3%
17	Ecuador	2	0.3%
18	Malaysia	2	0.3%
19	Mexico	2	0.3%
20	Iran, Islamic Republic of	2	0.3%
21	Italy	1	0.1%
22	India	1	0.1%
23	Bangladesh	1	0.1%
24	Bulgaria	1	0.1%
25	United Kingdom	1	0.1%