Rank	Countries/Territories	Count	Percent
1	United States	423	35%
2	China	389	32.2%
3	Germany	116	9.6%
4	Japan	88	7.3%
5	Netherlands	37	3.1%
6	United Kingdom	20	1.7%
7	India	16	1.3%
8	France	16	1.3%
9	Singapore	14	1.2%
10	Canada	13	1.1%
11	Iran, Islamic Republic of	12	1%
12	Hong Kong	9	0.7%
13	Korea, Republic of	8	0.7%
14	Cyprus	7	0.6%
15	Russia	5	0.4%
16	Australia	4	0.3%
17	Denmark	4	0.3%
18	Pakistan	3	0.2%
19	Taiwan	3	0.2%
20	Viet Nam	3	0.2%
21	Uruguay	2	0.2%
22	Thailand	2	0.2%
23	Serbia	2	0.2%
24	Lithuania	2	0.2%
25	Morocco	2	0.2%
26	Mongolia	1	0.1%
27	Argentina	1	0.1%
28	Czech Republic	1	0.1%
29	Norway	1	0.1%
30	South Africa	1	0.1%
31	Spain	1	0.1%
32	Switzerland	1	0.1%
33	Turkey	1	0.1%