Rank	Countries/Territories	Count	Percent
1	United States	627	47.9%
2	China	346	26.4%
3	Germany	115	8.8%
4	Singapore	31	2.4%
5	Netherlands	28	2.1%
6	France	20	1.5%
7	Switzerland	14	1.1%
8	Korea, Republic of	14	1.1%
9	Bulgaria	12	0.9%
10	Canada	9	0.7%
11	Thailand	7	0.5%
12	Nigeria	7	0.5%
13	Cyprus	7	0.5%
14	Viet Nam	7	0.5%
15	United Kingdom	6	0.5%
16	Australia	6	0.5%
17	Hong Kong	6	0.5%
18	India	6	0.5%
19	Indonesia	6	0.5%
20	Japan	6	0.5%
21	Latvia	5	0.4%
22	Mexico	3	0.2%
23	Argentina	3	0.2%
24	Bolivia, Plurinational State of	3	0.2%
25	Bangladesh	2	0.2%
26	Egypt	2	0.2%
27	Finland	2	0.2%
28	Russia	2	0.2%
29	Turkey	2	0.2%
30	Ukraine	1	0.1%
31	Spain	1	0.1%
32	Cote D'ivoire	1	0.1%
33	Mongolia	1	0.1%
34	Myanmar	1	0.1%
35	Nepal	1	0.1%