#    latitude          pdf          cdf
     -79.3816  0.000955632        0.004
     -75.1959  0.000477816        0.006
     -71.0101  0.000716724        0.009
     -66.8244  0.000238908         0.01
     -62.6387   0.00191126        0.018
      -58.453   0.00167236        0.025
     -54.2673   0.00143345        0.031
     -50.0816   0.00191126        0.039
     -45.8959   0.00262799         0.05
     -41.7102   0.00358362        0.065
     -37.5245   0.00406144        0.082
     -33.3388   0.00764506        0.114
      -29.153   0.00764506        0.146
     -24.9673   0.00668943        0.174
     -20.7816    0.0145734        0.235
     -16.5959    0.0172014        0.307
     -12.4102    0.0183959        0.384
     -8.22449    0.0224574        0.478
     -4.03878    0.0296246        0.602
     0.146932    0.0301024        0.728
      4.33264    0.0274744        0.843
      8.51835    0.0215017        0.933
      12.7041    0.0131399        0.988
      16.8898   0.00191126        0.996
      21.0755  0.000955632            1