#    latitude          pdf          cdf
     -79.7293    0.0009631        0.004
     -75.5761  0.000240775        0.005
     -71.4228    0.0009631        0.009
     -67.2696  0.000240775         0.01
     -63.1163    0.0019262        0.018
     -58.9631   0.00216698        0.027
     -54.8098   0.00120388        0.032
     -50.6565   0.00168543        0.039
     -46.5033   0.00337085        0.053
       -42.35   0.00433395        0.071
     -38.1968   0.00361163        0.086
     -34.0435   0.00722325        0.116
     -29.8903   0.00794558        0.149
      -25.737    0.0086679        0.185
     -21.5838    0.0134834        0.241
     -17.4305    0.0182989        0.317
     -13.2773     0.019262        0.397
     -9.12401    0.0233552        0.494
     -4.97075    0.0296153        0.617
    -0.817498    0.0296153         0.74
      3.33576    0.0264853         0.85
      7.48901     0.021429        0.939
      11.6423     0.011798        0.988
      15.7955    0.0019262        0.996
      19.9488    0.0009631            1