Rank	Countries/Territories	Count	Percent
1	United States	501	38.2%
2	China	244	18.6%
3	Germany	152	11.6%
4	India	102	7.8%
5	Turkey	62	4.7%
6	Canada	39	3%
7	France	27	2.1%
8	Ireland	18	1.4%
9	Japan	17	1.3%
10	Korea, Republic of	14	1.1%
11	Netherlands	13	1%
12	Switzerland	12	0.9%
13	Ecuador	10	0.8%
14	Egypt	9	0.7%
15	Hong Kong	9	0.7%
16	Spain	9	0.7%
17	Indonesia	8	0.6%
18	Iran, Islamic Republic of	6	0.5%
19	Singapore	5	0.4%
20	Cyprus	5	0.4%
21	Brazil	5	0.4%
22		5	0.4%
23	Saudi Arabia	4	0.3%
24	Mexico	4	0.3%
25	Serbia	3	0.2%
26	Russia	3	0.2%
27	Ukraine	3	0.2%
28	United Kingdom	2	0.2%
29	Romania	2	0.2%
30	Norway	2	0.2%
31	Italy	2	0.2%
32	Australia	2	0.2%
33	Bangladesh	2	0.2%
34	Colombia	2	0.2%
35	Denmark	2	0.2%
36	Guatemala	2	0.2%
37	Argentina	1	0.1%
38	Nepal	1	0.1%
39	Philippines	1	0.1%
40	Taiwan	1	0.1%