Rank	Countries/Territories	Count	Percent
1	United States	439	38.1%
2	China	389	33.8%
3	Germany	108	9.4%
4	Japan	61	5.3%
5	France	21	1.8%
6	Canada	18	1.6%
7		12	1%
8	United Kingdom	12	1%
9	Hong Kong	8	0.7%
10	India	8	0.7%
11	Netherlands	8	0.7%
12	Korea, Republic of	6	0.5%
13	Switzerland	6	0.5%
14	Taiwan	5	0.4%
15	Cyprus	5	0.4%
16	Argentina	4	0.3%
17	Romania	4	0.3%
18	Singapore	4	0.3%
19	Thailand	3	0.3%
20	Ukraine	3	0.3%
21	Iran, Islamic Republic of	3	0.3%
22	Ireland	3	0.3%
23	Australia	2	0.2%
24	Bulgaria	2	0.2%
25	Colombia	2	0.2%
26	Poland	2	0.2%
27	Saudi Arabia	2	0.2%
28	Norway	2	0.2%
29	Viet Nam	2	0.2%
30	Pakistan	1	0.1%
31	Philippines	1	0.1%
32	Mongolia	1	0.1%
33	Morocco	1	0.1%
34	Croatia	1	0.1%
35	Estonia	1	0.1%
36	Israel	1	0.1%
37	Indonesia	1	0.1%