Rank	Countries/Territories	Count	Percent
1	United States	264	29.3%
2	China	257	28.5%
3	Germany	93	10.3%
4	India	49	5.4%
5	Brazil	42	4.7%
6	Russia	30	3.3%
7	Pakistan	14	1.6%
8	Korea, Republic of	13	1.4%
9	Japan	12	1.3%
10	France	12	1.3%
11	Ireland	11	1.2%
12	Canada	11	1.2%
13	Italy	11	1.2%
14	Czech Republic	10	1.1%
15	Iran, Islamic Republic of	9	1%
16	Romania	8	0.9%
17	Netherlands	7	0.8%
18	United Kingdom	6	0.7%
19	Thailand	4	0.4%
20	Hong Kong	4	0.4%
21	Lithuania	3	0.3%
22	Spain	3	0.3%
23	Switzerland	3	0.3%
24	Taiwan	3	0.3%
25	Ukraine	3	0.3%
26	Ghana	2	0.2%
27	Greece	2	0.2%
28	Cyprus	2	0.2%
29	Australia	2	0.2%
30	Bangladesh	1	0.1%
31	Belgium	1	0.1%
32	Argentina	1	0.1%
33	Israel	1	0.1%
34	Sweden	1	0.1%
35	Slovakia	1	0.1%
36	Malaysia	1	0.1%
37	Mauritius	1	0.1%
38	Norway	1	0.1%
39	Kuwait	1	0.1%
40	Togo	1	0.1%
41	Turkey	1	0.1%