lcours = [[2005,44.51,45.48,53.17,51.88,48.54,54.35,57.52,63.95,62.91,58.49,55.24,56.87],
          [2006,62.99,60.21,62.06,70.26,69.64,68.56,73.67,73.23,61.96,57.81,58.76,62.47],
          [2007,53.63,57.52,62.05,67.49,67.32,71.05,76.82,70.76,76.97,82.34,92.51,90.93],
          [2008,91.99,95.05,103.78,109.07,123.15,132.32,133.19,113.42,97.7,71.59,52.34,40.25],
          [2009,43.29,43.26,46.54,50.19,57.38,68.68,64.46,72.52,67.61,72.77,76.65,74.46],
          [2010,76.17,73.64,78.83,84.84,75.31,74.76,75.39,77.09,77.77,82.67,85.29,91.47],
          [2011,96.61,103.73,114.64,123.21,114.4,114.03,116.75,110.38,112.84,109.55,110.61,107.87],
          [2012,110.68,119.44,125.45,119.75,110.17,95.16,102.54,113.36,113.05,111.7,109.14,109.46],
          [2013,112.95,116.13,108.50,101.95,102.53,102.92,107.83,111.29,111.73,109.08,107.96,110.76],
          [2014,108.12,108.91,107.48,107.66,109.52,111.80,106.86,101.66,97.29,87.46,79.00,62.51],
          [2015,47.71,58.10,55.89,59.61,64.04,61.47,56.56,46.52,47.62,48.43,44.27,38.05],
          [2016,34.74,35.97,39.60,48.13,49.69,49.68,42.46,47.04,49.06,48.30,50.47,56.82],
          [2017,55.70,55.59,52.83,51.73,50.31,47.92,52.65,52.38,57.54,61.37,63.57,66.87]
          ]