r/R   c/R     beta
0.15  0.3122  16.092
0.20  0.3305  16.806
0.25  0.3314  17.346
0.30  0.3309  17.312
0.35  0.3287  17.026
0.40  0.3261  16.534
0.45  0.3253  15.656
0.50  0.3248  14.685
0.55  0.3233  13.731
0.60  0.3220  12.773
0.65  0.3212  11.790
0.70  0.3206  10.924
0.75  0.3196  10.109
0.80  0.3185   9.359
0.85  0.3179   8.888
0.90  0.3125   8.564
0.95  0.2562   8.027
1.00  0.0724   6.065