 22 ecart_type_moyen=   3.13078618
  103.294128  261.520935  3.13078594  655.52832
  162.654083  637.02179  3.13078594  1596.75879
  167.782761  3709.19067  3.13078594  9297.45703
  272.46109  300.805878  3.13078594  754.
  385.281494  3837.00391  3.13078594  9617.83398
  393.832947  5015.13086  3.13078594  12570.9268
  477.336945  1061.8667  3.13078594  2661.67505
  481.12915  779.826172  3.13078594  1954.71216
  489.737701  1598.25427  3.13078594  4006.18408
  496.016022  419.116455  3.13078594  1050.55725
  503.70874  863.356079  3.13078594  2164.08838
  528.619324  11847.3711  3.13078594  29696.6191
  547.830383  521.518982  3.13078594  1307.23938
  556.919922  515.467102  3.13078594  1292.06982
  568.332886  1198.42896  3.13078594  3003.98193
  623.205078  3011.36206  3.13078594  7548.27979
  675.72998  294.491547  3.13078594  738.172485
  696.072205  1990.74878  3.13078594  4990.01074
  707.011597  315.999268  3.13078594  792.08374
  730.056335  236.604279  3.13078594  593.072266
  731.629883  437.352539  3.13078594  1096.26782
  740.193359  364.356415  3.13078594  913.295776
