Rank	Countries/Territories	Count	Percent
1	United States	228	39.7%
2	China	81	14.1%
3	Germany	64	11.1%
4	India	37	6.4%
5	Netherlands	23	4%
6	Singapore	20	3.5%
7	Ireland	15	2.6%
8	Japan	11	1.9%
9	South Africa	11	1.9%
10	Philippines	8	1.4%
11	United Kingdom	7	1.2%
12	Algeria	6	1%
13	Australia	6	1%
14	Canada	5	0.9%
15	France	3	0.5%
16	Guyana	3	0.5%
17	Hong Kong	3	0.5%
18	Indonesia	3	0.5%
19	Iran, Islamic Republic of	3	0.5%
20	Portugal	3	0.5%
21	Taiwan	3	0.5%
22	Kenya	3	0.5%
23	Nigeria	3	0.5%
24	Mexico	2	0.3%
25	New Zealand	2	0.3%
26	Israel	2	0.3%
27	Tanzania, United Republic of	2	0.3%
28	Trinidad and Tobago	2	0.3%
29	Iraq	2	0.3%
30	Belgium	2	0.3%
31	Colombia	2	0.3%
32	Cyprus	2	0.3%
33	Egypt	1	0.2%
34	Bulgaria	1	0.2%
35	Qatar	1	0.2%
36	Saudi Arabia	1	0.2%
37	Italy	1	0.2%
38	Jamaica	1	0.2%
39	Pakistan	1	0.2%
40	Viet Nam	1	0.2%