Rank	Countries/Territories	Count	Percent
1	United States	619	50.3%
2	China	297	24.1%
3	Germany	78	6.3%
4	India	26	2.1%
5	Japan	23	1.9%
6	Taiwan	23	1.9%
7	Russia	15	1.2%
8	Korea, Republic of	12	1%
9	Switzerland	11	0.9%
10	Netherlands	10	0.8%
11	France	9	0.7%
12	Singapore	8	0.6%
13	United Kingdom	8	0.6%
14	Ireland	7	0.6%
15	Romania	6	0.5%
16	Israel	5	0.4%
17	Canada	5	0.4%
18	Hong Kong	5	0.4%
19	Hungary	5	0.4%
20	Greece	4	0.3%
21	Cyprus	4	0.3%
22	Lithuania	4	0.3%
23	Italy	4	0.3%
24	Jordan	4	0.3%
25	Oman	4	0.3%
26	Nepal	3	0.2%
27	Australia	3	0.2%
28	Iran, Islamic Republic of	3	0.2%
29	Belgium	2	0.2%
30	Brazil	2	0.2%
31	Czech Republic	2	0.2%
32	Egypt	2	0.2%
33	Mexico	2	0.2%
34	Saudi Arabia	2	0.2%
35	Slovakia	2	0.2%
36	Spain	2	0.2%
37	Turkey	2	0.2%
38	Ukraine	2	0.2%
39	Viet Nam	2	0.2%
40	Sweden	1	0.1%
41	Poland	1	0.1%
42	Bangladesh	1	0.1%
43	Georgia	1	0.1%