Rank	Countries/Territories	Count	Percent
1	United States	468	42.5%
2	China	320	29.1%
3	Germany	104	9.4%
4	India	38	3.5%
5	France	36	3.3%
6	Singapore	22	2%
7	Ireland	9	0.8%
8	Portugal	8	0.7%
9	Mexico	7	0.6%
10	Netherlands	7	0.6%
11	Italy	7	0.6%
12	Japan	7	0.6%
13	Canada	7	0.6%
14	Australia	6	0.5%
15	Cyprus	6	0.5%
16	Argentina	5	0.5%
17	Tanzania, United Republic of	5	0.5%
18	Russia	4	0.4%
19	Indonesia	4	0.4%
20	Egypt	4	0.4%
21	Brazil	3	0.3%
22	Korea, Republic of	2	0.2%
23	Philippines	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Taiwan	2	0.2%
26	Romania	2	0.2%
27	United Kingdom	2	0.2%
28	Slovenia	1	0.1%
29	Turkey	1	0.1%
30	Ukraine	1	0.1%
31	Norway	1	0.1%
32	Oman	1	0.1%
33	Lithuania	1	0.1%
34	Malaysia	1	0.1%
35	Mauritius	1	0.1%
36	Georgia	1	0.1%
37	Greece	1	0.1%
38	Czech Republic	1	0.1%
39	Colombia	1	0.1%