Rank	Countries/Territories	Count	Percent
1	United States	328	46.9%
2	China	156	22.3%
3	Germany	79	11.3%
4	Denmark	16	2.3%
5	Korea, Republic of	16	2.3%
6	Japan	14	2%
7	France	12	1.7%
8		12	1.7%
9	Canada	9	1.3%
10	Singapore	8	1.1%
11	Cyprus	5	0.7%
12	India	4	0.6%
13	Netherlands	4	0.6%
14	Norway	4	0.6%
15	Saudi Arabia	3	0.4%
16	Costa Rica	3	0.4%
17	Australia	3	0.4%
18	Bangladesh	2	0.3%
19	Argentina	2	0.3%
20	Hong Kong	2	0.3%
21	Lebanon	2	0.3%
22	Lithuania	2	0.3%
23	Malaysia	2	0.3%
24	Spain	2	0.3%
25	Iran, Islamic Republic of	2	0.3%
26	United Arab Emirates	2	0.3%
27	Taiwan	2	0.3%
28	Ukraine	1	0.1%
29	Israel	1	0.1%
30	Poland	1	0.1%
31	Switzerland	1	0.1%