Rank	Countries/Territories	Count	Percent
1	United States	448	40.2%
2	China	331	29.7%
3	Germany	97	8.7%
4	Netherlands	46	4.1%
5	Japan	30	2.7%
6	France	26	2.3%
7	India	23	2.1%
8	Ireland	14	1.3%
9	Canada	12	1.1%
10	Singapore	10	0.9%
11	Indonesia	9	0.8%
12	Argentina	8	0.7%
13	Philippines	7	0.6%
14	Brazil	4	0.4%
15	United Kingdom	4	0.4%
16	Bangladesh	3	0.3%
17	Cyprus	3	0.3%
18	Norway	3	0.3%
19	Malaysia	3	0.3%
20	Ukraine	3	0.3%
21	Trinidad and Tobago	2	0.2%
22	Viet Nam	2	0.2%
23	Spain	2	0.2%
24	Sri Lanka	2	0.2%
25	Mexico	2	0.2%
26	Mongolia	2	0.2%
27	Poland	2	0.2%
28	Portugal	2	0.2%
29	Russia	2	0.2%
30	Ecuador	2	0.2%
31	Australia	2	0.2%
32	Iran, Islamic Republic of	2	0.2%
33	Hong Kong	2	0.2%
34	Israel	1	0.1%
35	Jordan	1	0.1%
36	Latvia	1	0.1%
37	Pakistan	1	0.1%
38	Switzerland	1	0.1%