Rank	Countries/Territories	Count	Percent
1	United States	538	39%
2	China	349	25.3%
3	Germany	125	9.1%
4	France	56	4.1%
5	Japan	30	2.2%
6	Taiwan	29	2.1%
7	Canada	29	2.1%
8	Spain	25	1.8%
9	India	23	1.7%
10	Ireland	22	1.6%
11	Netherlands	22	1.6%
12	Ukraine	16	1.2%
13	Egypt	11	0.8%
14	Cyprus	9	0.7%
15	Australia	9	0.7%
16	United Kingdom	9	0.7%
17	Iran, Islamic Republic of	8	0.6%
18	Indonesia	6	0.4%
19	Argentina	6	0.4%
20	Ghana	5	0.4%
21	Saudi Arabia	5	0.4%
22	Singapore	5	0.4%
23	Pakistan	4	0.3%
24	Bangladesh	4	0.3%
25	Russia	4	0.3%
26	Poland	3	0.2%
27	Trinidad and Tobago	3	0.2%
28	Turkey	2	0.1%
29	Sweden	2	0.1%
30	Nepal	2	0.1%
31	Israel	2	0.1%
32	Italy	2	0.1%
33	Greece	2	0.1%
34	Hong Kong	2	0.1%
35	Iraq	2	0.1%
36	Ethiopia	1	0.1%
37	Kazakhstan	1	0.1%
38	Lebanon	1	0.1%
39	Norway	1	0.1%
40	Switzerland	1	0.1%
41	Romania	1	0.1%
42	South Africa	1	0.1%
43	Viet Nam	1	0.1%