Rank	Countries/Territories	Count	Percent
1	United States	942	71.3%
2	China	167	12.6%
3	Germany	37	2.8%
4	Netherlands	21	1.6%
5	Sweden	21	1.6%
6	Switzerland	17	1.3%
7	Iran, Islamic Republic of	10	0.8%
8	United Kingdom	10	0.8%
9	Taiwan	9	0.7%
10	Japan	9	0.7%
11	India	7	0.5%
12	Canada	7	0.5%
13	Ukraine	7	0.5%
14	France	6	0.5%
15	Ireland	5	0.4%
16	New Zealand	5	0.4%
17	Hong Kong	4	0.3%
18	Philippines	4	0.3%
19	Poland	4	0.3%
20	Singapore	4	0.3%
21	Turkey	4	0.3%
22	Indonesia	3	0.2%
23	Korea, Republic of	3	0.2%
24	Lithuania	3	0.2%
25	Malaysia	2	0.2%
26	Norway	2	0.2%
27	Peru	2	0.2%
28	Russia	2	0.2%
29	Trinidad and Tobago	1	0.1%
30	Viet Nam	1	0.1%
31	Bangladesh	1	0.1%
32	Ecuador	1	0.1%