#   longitude          pdf          cdf
     -22.6645   0.00196886   0.00793651
     -18.6335            0   0.00793651
     -14.6025            0   0.00793651
     -10.5715            0   0.00793651
     -6.54047            0   0.00793651
     -2.50947            0   0.00793651
      1.52154   0.00393773    0.0238095
      5.55255   0.00393773    0.0396825
      9.58356   0.00787546    0.0714286
      13.6146    0.0236264     0.166667
      17.6456     0.108288     0.603175
      21.6766    0.0984432            1