Rank	Countries/Territories	Count	Percent
1	United States	578	49.9%
2	China	300	25.9%
3	Germany	74	6.4%
4	India	21	1.8%
5	France	21	1.8%
6		16	1.4%
7	Singapore	14	1.2%
8	United Kingdom	13	1.1%
9	Ireland	12	1%
10	Cyprus	11	0.9%
11	Netherlands	10	0.9%
12	Iran, Islamic Republic of	8	0.7%
13	Australia	8	0.7%
14	Korea, Republic of	7	0.6%
15	Argentina	6	0.5%
16	Hong Kong	5	0.4%
17	Russia	5	0.4%
18	Brazil	4	0.3%
19	Sweden	4	0.3%
20	Spain	3	0.3%
21	Belgium	3	0.3%
22	Canada	3	0.3%
23	Nigeria	3	0.3%
24	Mexico	3	0.3%
25	Japan	3	0.3%
26	Norway	2	0.2%
27	Romania	2	0.2%
28	Mongolia	2	0.2%
29	Morocco	2	0.2%
30	Bangladesh	2	0.2%
31	Indonesia	2	0.2%
32	Turkey	2	0.2%
33	Ukraine	2	0.2%
34	Taiwan	1	0.1%
35	Ecuador	1	0.1%
36	Egypt	1	0.1%
37	Cote D'ivoire	1	0.1%
38	Bulgaria	1	0.1%
39	Saudi Arabia	1	0.1%
40	Moldova, Republic of	1	0.1%
41	Latvia	1	0.1%