Rank	Countries/Territories	Count	Percent
1	United States	526	46.3%
2	China	305	26.8%
3	Germany	115	10.1%
4	Singapore	30	2.6%
5	Netherlands	24	2.1%
6	Switzerland	14	1.2%
7	Korea, Republic of	13	1.1%
8	Bulgaria	12	1.1%
9	France	12	1.1%
10	Canada	9	0.8%
11	Viet Nam	7	0.6%
12	Australia	6	0.5%
13	Indonesia	6	0.5%
14	Japan	6	0.5%
15	Cyprus	6	0.5%
16	Hong Kong	5	0.4%
17	India	5	0.4%
18	United Kingdom	4	0.4%
19	Thailand	3	0.3%
20	Nigeria	3	0.3%
21	Mexico	3	0.3%
22	Argentina	3	0.3%
23	Bolivia, Plurinational State of	3	0.3%
24	Bangladesh	2	0.2%
25	Egypt	2	0.2%
26	Finland	2	0.2%
27	Latvia	2	0.2%
28	Turkey	2	0.2%
29	Ukraine	1	0.1%
30	Mongolia	1	0.1%
31	Myanmar	1	0.1%
32	Nepal	1	0.1%
33	Russia	1	0.1%
34	Spain	1	0.1%
35	Cote D'ivoire	1	0.1%