Rank	Countries/Territories	Count	Percent
1	United States	431	49.3%
2	Germany	101	11.6%
3	China	89	10.2%
4	Japan	45	5.1%
5	India	39	4.5%
6	Singapore	32	3.7%
7	France	26	3%
8	Latvia	16	1.8%
9	Netherlands	14	1.6%
10	Canada	10	1.1%
11	United Kingdom	9	1%
12		7	0.8%
13	Australia	7	0.8%
14	Romania	5	0.6%
15	Ukraine	5	0.6%
16	Russia	3	0.3%
17	Mongolia	3	0.3%
18	Bulgaria	3	0.3%
19	Colombia	3	0.3%
20	Cyprus	3	0.3%
21	Korea, Republic of	3	0.3%
22	Macao	2	0.2%
23	Iran, Islamic Republic of	2	0.2%
24	Hong Kong	2	0.2%
25	Norway	2	0.2%
26	Pakistan	2	0.2%
27	Sweden	2	0.2%
28	Taiwan	1	0.1%
29	Trinidad and Tobago	1	0.1%
30	Morocco	1	0.1%
31	United Arab Emirates	1	0.1%
32	Viet Nam	1	0.1%
33	Ireland	1	0.1%
34	Mexico	1	0.1%
35	Argentina	1	0.1%