Rank	Countries/Territories	Count	Percent
1	United States	358	43.9%
2	China	113	13.9%
3	Germany	94	11.5%
4	India	65	8%
5	Canada	21	2.6%
6	Pakistan	16	2%
7	Japan	14	1.7%
8	Romania	12	1.5%
9	United Kingdom	10	1.2%
10	Netherlands	9	1.1%
11	Italy	8	1%
12	Portugal	6	0.7%
13	Korea, Republic of	6	0.7%
14	Singapore	6	0.7%
15	South Africa	6	0.7%
16	Turkey	5	0.6%
17	Ireland	5	0.6%
18	Nepal	5	0.6%
19	Poland	5	0.6%
20	Iran, Islamic Republic of	4	0.5%
21	Australia	4	0.5%
22	Cyprus	4	0.5%
23	France	3	0.4%
24	Bangladesh	3	0.4%
25	Spain	3	0.4%
26	Uganda	2	0.2%
27	Saudi Arabia	2	0.2%
28	Thailand	2	0.2%
29	Argentina	2	0.2%
30	Ghana	2	0.2%
31	Czech Republic	2	0.2%
32	Hong Kong	2	0.2%
33	New Zealand	2	0.2%
34	Nigeria	1	0.1%
35	Israel	1	0.1%
36	Lithuania	1	0.1%
37	Morocco	1	0.1%
38	Denmark	1	0.1%
39	Egypt	1	0.1%
40	Greece	1	0.1%
41	Georgia	1	0.1%
42	Croatia	1	0.1%
43	Belgium	1	0.1%
44	Austria	1	0.1%
45	Viet Nam	1	0.1%
46	Yemen	1	0.1%
47	Switzerland	1	0.1%