Rank	Countries/Territories	Count	Percent
1	United States	644	43.5%
2	China	462	31.2%
3	Germany	112	7.6%
4	France	60	4%
5	Japan	39	2.6%
6	Canada	23	1.6%
7	Russia	17	1.1%
8	Singapore	15	1%
9	India	15	1%
10	Ireland	14	0.9%
11	Greece	8	0.5%
12	Netherlands	8	0.5%
13	Sweden	7	0.5%
14	Cyprus	6	0.4%
15	Hong Kong	5	0.3%
16	Korea, Republic of	5	0.3%
17	Mexico	4	0.3%
18	Romania	4	0.3%
19	Australia	4	0.3%
20	United Kingdom	4	0.3%
21	Bulgaria	2	0.1%
22	Costa Rica	2	0.1%
23	Iran, Islamic Republic of	2	0.1%
24	Turkey	2	0.1%
25	Ukraine	2	0.1%
26	Latvia	2	0.1%
27	Mauritius	2	0.1%
28	Norway	1	0.1%
29	Pakistan	1	0.1%
30	Peru	1	0.1%
31	Poland	1	0.1%
32	Taiwan	1	0.1%
33	Israel	1	0.1%
34	Italy	1	0.1%
35	Croatia	1	0.1%
36	Finland	1	0.1%
37		1	0.1%
38	Brazil	1	0.1%
39	Viet Nam	1	0.1%