Rank	Countries/Territories	Count	Percent
1	United States	497	37.9%
2	China	250	19.1%
3	Netherlands	127	9.7%
4	Germany	104	7.9%
5	India	42	3.2%
6	Japan	29	2.2%
7	Ireland	25	1.9%
8	United Kingdom	18	1.4%
9	Norway	16	1.2%
10	Iran, Islamic Republic of	16	1.2%
11	Iraq	15	1.1%
12	Canada	14	1.1%
13	France	13	1%
14	Nigeria	11	0.8%
15	Thailand	11	0.8%
16	Sweden	11	0.8%
17	Singapore	8	0.6%
18	Indonesia	8	0.6%
19	Korea, Republic of	7	0.5%
20	Saudi Arabia	7	0.5%
21	Australia	6	0.5%
22	Bangladesh	6	0.5%
23	Cyprus	6	0.5%
24	Denmark	6	0.5%
25	Taiwan	5	0.4%
26	South Africa	4	0.3%
27	Egypt	4	0.3%
28	Ghana	4	0.3%
29	Romania	4	0.3%
30	Latvia	4	0.3%
31	Malaysia	3	0.2%
32	Mexico	3	0.2%
33	Russia	3	0.2%
34	Philippines	3	0.2%
35	Hong Kong	3	0.2%
36	Estonia	2	0.2%
37	Argentina	2	0.2%
38	Mauritius	2	0.2%
39	Ukraine	2	0.2%
40	Switzerland	1	0.1%
41	Viet Nam	1	0.1%
42	Poland	1	0.1%
43	Puerto Rico	1	0.1%
44	Pakistan	1	0.1%
45	Senegal	1	0.1%
46	Bulgaria	1	0.1%
47	Finland	1	0.1%
48	Greece	1	0.1%