Rank	Countries/Territories	Count	Percent
1	United States	362	38.1%
2	China	262	27.5%
3	Germany	80	8.4%
4	India	62	6.5%
5	Japan	35	3.7%
6	France	18	1.9%
7	Korea, Republic of	13	1.4%
8	Belgium	9	0.9%
9	Sweden	8	0.8%
10	Serbia	7	0.7%
11	Romania	6	0.6%
12	Russia	6	0.6%
13	Brazil	6	0.6%
14	Bulgaria	5	0.5%
15	Canada	5	0.5%
16	Netherlands	5	0.5%
17	United Kingdom	5	0.5%
18	Ukraine	4	0.4%
19	Latvia	4	0.4%
20	Iran, Islamic Republic of	4	0.4%
21	Iraq	4	0.4%
22	Bangladesh	4	0.4%
23	Cyprus	4	0.4%
24	Egypt	4	0.4%
25	Denmark	3	0.3%
26	Argentina	3	0.3%
27	Ireland	3	0.3%
28	Pakistan	3	0.3%
29	Peru	3	0.3%
30	Hong Kong	3	0.3%
31	Morocco	2	0.2%
32	Switzerland	1	0.1%
33	Saudi Arabia	1	0.1%
34	Singapore	1	0.1%
35	Malaysia	1	0.1%
36	Australia	1	0.1%
37	Cuba	1	0.1%
38	El Salvador	1	0.1%
39	Estonia	1	0.1%
40	Ethiopia	1	0.1%