Rank	Countries/Territories	Count	Percent
1	United States	496	38.6%
2	China	337	26.2%
3	Germany	92	7.2%
4	India	51	4%
5	Egypt	34	2.6%
6	France	30	2.3%
7	Ireland	29	2.3%
8	Netherlands	29	2.3%
9	Australia	20	1.6%
10	Japan	18	1.4%
11	Singapore	12	0.9%
12	Italy	11	0.9%
13	Iran, Islamic Republic of	11	0.9%
14	Canada	11	0.9%
15	Nigeria	8	0.6%
16	United Kingdom	8	0.6%
17	Hong Kong	7	0.5%
18	Ukraine	6	0.5%
19	Thailand	5	0.4%
20	South Africa	5	0.4%
21	Spain	4	0.3%
22	Russia	4	0.3%
23	Turkey	4	0.3%
24	Argentina	4	0.3%
25	Barbados	3	0.2%
26	Cyprus	3	0.2%
27	Indonesia	3	0.2%
28	Korea, Republic of	3	0.2%
29	Mexico	3	0.2%
30	Sweden	3	0.2%
31	Saudi Arabia	2	0.2%
32	Sri Lanka	2	0.2%
33	Israel	2	0.2%
34	Pakistan	2	0.2%
35	Qatar	2	0.2%
36	Romania	2	0.2%
37	Finland	2	0.2%
38	Ghana	2	0.2%
39	Brazil	2	0.2%
40	Bulgaria	2	0.2%
41	Bangladesh	2	0.2%
42	Armenia	1	0.1%
43	Belgium	1	0.1%
44	Greece	1	0.1%
45	Peru	1	0.1%
46	Philippines	1	0.1%
47	Oman	1	0.1%
48	Mongolia	1	0.1%
49	Sudan	1	0.1%
50	Slovenia	1	0.1%
51	Taiwan	1	0.1%