Rank	Countries/Territories	Count	Percent
1	United States	411	43.9%
2	China	206	22%
3	Germany	56	6%
4	Ireland	43	4.6%
5	Netherlands	37	3.9%
6	India	27	2.9%
7	United Kingdom	20	2.1%
8	Canada	18	1.9%
9	Australia	16	1.7%
10	Iran, Islamic Republic of	11	1.2%
11	Hong Kong	8	0.9%
12	Guatemala	5	0.5%
13	Iraq	5	0.5%
14	Norway	5	0.5%
15	Singapore	5	0.5%
16	Spain	4	0.4%
17	Morocco	3	0.3%
18	Nigeria	3	0.3%
19	Lithuania	3	0.3%
20	Israel	3	0.3%
21	Ethiopia	3	0.3%
22	Finland	3	0.3%
23	France	3	0.3%
24	Ghana	2	0.2%
25	Indonesia	2	0.2%
26	Bangladesh	2	0.2%
27	Argentina	2	0.2%
28	Cyprus	2	0.2%
29	Italy	2	0.2%
30	Kenya	2	0.2%
31	New Zealand	2	0.2%
32	Qatar	2	0.2%
33	South Africa	2	0.2%
34	Russia	2	0.2%
35	Saudi Arabia	2	0.2%
36	Taiwan	1	0.1%
37	Tanzania, United Republic of	1	0.1%
38	Thailand	1	0.1%
39	Turkey	1	0.1%
40	Ukraine	1	0.1%
41	United Arab Emirates	1	0.1%
42	Viet Nam	1	0.1%
43	Romania	1	0.1%
44	Poland	1	0.1%
45	Portugal	1	0.1%
46	Malaysia	1	0.1%
47	Montenegro	1	0.1%
48	Djibouti	1	0.1%
49	Belgium	1	0.1%
50	Bulgaria	1	0.1%