Rank	Countries/Territories	Count	Percent
1	United States	486	36.1%
2	China	396	29.4%
3	Germany	197	14.6%
4	Japan	44	3.3%
5	France	42	3.1%
6	Canada	20	1.5%
7	Ireland	16	1.2%
8	Korea, Republic of	16	1.2%
9	Singapore	15	1.1%
10	Iraq	15	1.1%
11	Netherlands	14	1%
12	Cyprus	9	0.7%
13	Australia	7	0.5%
14	Argentina	6	0.4%
15	Indonesia	6	0.4%
16	Hong Kong	6	0.4%
17	United Kingdom	6	0.4%
18	Brazil	5	0.4%
19	Thailand	5	0.4%
20	Spain	5	0.4%
21	Nigeria	4	0.3%
22	Mexico	3	0.2%
23	Mongolia	2	0.1%
24	Nepal	2	0.1%
25	Latvia	2	0.1%
26	Malaysia	2	0.1%
27	Sri Lanka	2	0.1%
28	Ukraine	2	0.1%
29	South Africa	2	0.1%
30	Bangladesh	2	0.1%
31	India	2	0.1%
32	Israel	1	0.1%
33	Finland	1	0.1%
34	Colombia	1	0.1%
35	Switzerland	1	0.1%
36	Taiwan	1	0.1%
37	Viet Nam	1	0.1%