#    latitude          pdf          cdf
     -80.0164   0.00097754        0.004
     -75.9245   0.00097754        0.008
     -71.8326            0        0.008
     -67.7407   0.00219947        0.017
     -63.6488   0.00122193        0.022
     -59.5569   0.00122193        0.027
      -55.465   0.00244385        0.037
     -51.3731   0.00268824        0.048
     -47.2812   0.00219947        0.057
     -43.1893   0.00586524        0.081
     -39.0974   0.00586524        0.105
     -35.0055   0.00708717        0.134
     -30.9136   0.00806471        0.167
     -26.8217    0.0107529        0.211
     -22.7298    0.0175957        0.283
     -18.6379    0.0166182        0.351
      -14.546    0.0227278        0.444
     -10.4541    0.0268824        0.554
     -6.36215    0.0307925         0.68
     -2.27024    0.0268824         0.79
      1.82166    0.0246829        0.891
      5.91356    0.0178401        0.964
      10.0055    0.0065984        0.991
      14.0974   0.00146631        0.997
      18.1893  0.000733155            1