Rank	Countries/Territories	Count	Percent
1	United States	477	36.3%
2	China	424	32.2%
3	Germany	103	7.8%
4	India	55	4.2%
5	Italy	31	2.4%
6	United Kingdom	30	2.3%
7	Canada	23	1.7%
8	Japan	14	1.1%
9	Netherlands	14	1.1%
10	Australia	13	1%
11	France	12	0.9%
12	Ireland	12	0.9%
13	Korea, Republic of	10	0.8%
14	Bangladesh	7	0.5%
15	Cyprus	7	0.5%
16	Spain	7	0.5%
17	Taiwan	6	0.5%
18	Egypt	6	0.5%
19	Indonesia	6	0.5%
20	Romania	6	0.5%
21	Mexico	5	0.4%
22	Turkey	5	0.4%
23	Singapore	3	0.2%
24	Mongolia	3	0.2%
25	New Zealand	3	0.2%
26	Portugal	3	0.2%
27	Argentina	3	0.2%
28	Hong Kong	3	0.2%
29	Finland	2	0.2%
30	Kazakhstan	2	0.2%
31	Iran, Islamic Republic of	2	0.2%
32	Israel	2	0.2%
33	Latvia	2	0.2%
34	Malta	2	0.2%
35	Thailand	2	0.2%
36	Ukraine	1	0.1%
37	Virgin Islands, U.S.	1	0.1%
38	Libya	1	0.1%
39	Luxembourg	1	0.1%
40	Russia	1	0.1%
41	Estonia	1	0.1%
42	Czech Republic	1	0.1%
43	Denmark	1	0.1%
44	Belgium	1	0.1%
45	Brazil	1	0.1%