Rank	Countries/Territories	Count	Percent
1	United States	405	36.2%
2	China	365	32.6%
3	Germany	79	7.1%
4	Japan	48	4.3%
5	India	30	2.7%
6	Ireland	24	2.1%
7	Iran, Islamic Republic of	19	1.7%
8	Netherlands	15	1.3%
9	France	14	1.2%
10	Singapore	13	1.2%
11	Sweden	11	1%
12	Canada	10	0.9%
13	Cyprus	9	0.8%
14		9	0.8%
15	United Kingdom	8	0.7%
16	Taiwan	7	0.6%
17	Hong Kong	7	0.6%
18	Saudi Arabia	4	0.4%
19	Ukraine	3	0.3%
20	Viet Nam	3	0.3%
21	South Sudan	3	0.3%
22	Spain	3	0.3%
23	Romania	3	0.3%
24	Korea, Republic of	3	0.3%
25	Latvia	3	0.3%
26	Mongolia	2	0.2%
27	Philippines	2	0.2%
28	Russia	2	0.2%
29	Switzerland	2	0.2%
30	Australia	2	0.2%
31	Bangladesh	2	0.2%
32	Bulgaria	2	0.2%
33	Czech Republic	2	0.2%
34	Egypt	2	0.2%
35	Indonesia	1	0.1%
36	Slovenia	1	0.1%
37	Pakistan	1	0.1%
38	Mauritius	1	0.1%