#    latitude          pdf          cdf
     -74.6417  0.000854555   0.00606061
     -67.5496   0.00170911    0.0181818
     -60.4575   0.00170911     0.030303
     -53.3653   0.00341822    0.0545455
     -46.2732   0.00341822    0.0787879
     -39.1811   0.00341822      0.10303
      -32.089   0.00940011     0.169697
     -24.9969    0.0111092     0.248485
     -17.9048    0.0188002     0.381818
     -10.8126    0.0333277     0.618182
     -3.72053    0.0290549     0.824242
      3.37159    0.0162366     0.939394
      10.4637   0.00854555            1