Rank	Countries/Territories	Count	Percent
1	United States	821	50.6%
2	China	380	23.4%
3	Germany	109	6.7%
4	India	52	3.2%
5	Japan	44	2.7%
6		33	2%
7	Australia	22	1.4%
8	United Kingdom	17	1%
9	Russia	13	0.8%
10	Korea, Republic of	13	0.8%
11	Canada	11	0.7%
12	Ireland	9	0.6%
13	Thailand	9	0.6%
14	Netherlands	8	0.5%
15	Spain	7	0.4%
16	Hong Kong	7	0.4%
17	Argentina	7	0.4%
18	Denmark	7	0.4%
19	Singapore	6	0.4%
20	Italy	5	0.3%
21	Poland	4	0.2%
22	Taiwan	4	0.2%
23	Ecuador	4	0.2%
24	France	4	0.2%
25	Israel	4	0.2%
26	Iran, Islamic Republic of	3	0.2%
27	Viet Nam	3	0.2%
28	Romania	2	0.1%
29	Turkey	2	0.1%
30	South Africa	2	0.1%
31	Sweden	2	0.1%
32	Cyprus	2	0.1%
33	Brazil	2	0.1%
34	Estonia	1	0.1%
35	Indonesia	1	0.1%
36	Ukraine	1	0.1%
37	Norway	1	0.1%
38	Philippines	1	0.1%
39	Mexico	1	0.1%