#   longitude          pdf          cdf
     -22.3499    0.0016449   0.00606061
     -18.6654            0   0.00606061
     -14.9809            0   0.00606061
     -11.2964            0   0.00606061
     -7.61194            0   0.00606061
     -3.92746            0   0.00606061
    -0.242983    0.0032898    0.0181818
       3.4415    0.0032898     0.030303
      7.12598   0.00822451    0.0606061
      10.8105   0.00986941    0.0969697
      14.4949    0.0378327     0.236364
      18.1794     0.123368     0.690909
      21.8639      0.08389            1