0	9.5857	  a
5	9.48536   a
10	9.27587   a
15	8.81607   c
20	8.63073   a
25	8.41677   a
30	8.18178   a
35	9.35036   a
40	9.81617   a
45	9.97597   a
50	9.69928   c
55	9.2697    a
60	8.27442   a
65	7.96095   a
70	8.1061    a
75	7.82319   a
80	7.49408   a
85	7.1468    c
90	7.17136   a
95	6.86081   a
100	6.64573   c