Rank	Countries/Territories	Count	Percent
1	United States	657	42.4%
2	China	402	26%
3	Germany	148	9.6%
4	France	81	5.2%
5	Singapore	56	3.6%
6	Japan	33	2.1%
7	Korea, Republic of	23	1.5%
8	Canada	17	1.1%
9	Netherlands	14	0.9%
10	India	13	0.8%
11	Cyprus	13	0.8%
12	Poland	12	0.8%
13	Russia	11	0.7%
14	Australia	9	0.6%
15	Iran, Islamic Republic of	8	0.5%
16	Ireland	6	0.4%
17	Argentina	6	0.4%
18	United Kingdom	6	0.4%
19	Italy	5	0.3%
20	Latvia	5	0.3%
21	Taiwan	4	0.3%
22	Thailand	3	0.2%
23	Ukraine	3	0.2%
24	Viet Nam	3	0.2%
25	Malaysia	2	0.1%
26	Mongolia	2	0.1%
27	Norway	2	0.1%
28	Nepal	1	0.1%
29	South Africa	1	0.1%
30	Sweden	1	0.1%
31	Switzerland	1	0.1%