Rank	Countries/Territories	Count	Percent
1	United States	409	33.1%
2	China	305	24.7%
3	India	102	8.3%
4	Germany	91	7.4%
5	Singapore	55	4.4%
6	Spain	32	2.6%
7	Japan	25	2%
8	Canada	23	1.9%
9	Ireland	20	1.6%
10	Russia	17	1.4%
11	Korea, Republic of	15	1.2%
12	United Kingdom	14	1.1%
13	France	13	1.1%
14	Netherlands	11	0.9%
15	Italy	10	0.8%
16	Greece	9	0.7%
17	Ukraine	8	0.6%
18	Cyprus	7	0.6%
19	Brazil	7	0.6%
20	Iran, Islamic Republic of	7	0.6%
21	Peru	5	0.4%
22	Hong Kong	5	0.4%
23	Poland	4	0.3%
24	Thailand	4	0.3%
25	Saudi Arabia	3	0.2%
26	Sweden	3	0.2%
27	Ecuador	3	0.2%
28	Australia	3	0.2%
29	Azerbaijan	2	0.2%
30	Belgium	2	0.2%
31	Denmark	2	0.2%
32	Chile	2	0.2%
33	Israel	2	0.2%
34	Indonesia	2	0.2%
35	Romania	2	0.2%
36	Nigeria	2	0.2%
37	Morocco	2	0.2%
38	Uzbekistan	2	0.2%
39	Norway	1	0.1%
40	Lao People's Democratic Republic	1	0.1%
41	Mexico	1	0.1%
42	Mongolia	1	0.1%
43	Taiwan	1	0.1%
44	Argentina	1	0.1%