The table below will be used for the following five questions. The table represents the mean and standard deviation graduation rates, by candidate age, for a population of flight academies.

Age	Mean Graduation Rate	Standard Deviation
16	76.6	1.8
17	74.2	1.8
18	79.5	1.7
19	79.6	2.1
20	81.2	2.1
21	84.2	2.2
22	85.5	2.1
23	88.5	1.4
24	86.5	1.5
25	87.7	1.9
26	87.8	1.5
27	88.1	1.6
28	89.8	1.8
29	90.1	1.8
30	87.8	2.3
31	88.3	2.2
32	88.3	1.7
33	84.5	1.9
34	85.1	1.6
35	88.1	1.4
36	88.2	1.5
37	86.5	1.4
38	84.5	1.8
39	88.8	1.9
40	84.4	1.6

1. A flight academy has a graduation rate of 72.1 among all their 17-year old candidates from the last five years. What percentage of flight academies have a higher graduation rate for 17-year old candidates?