datetime,y,gas_regm,weekday
2000-01-31,41.0,1.289,0
2000-02-29,41.0,1.377,1
2000-03-31,45.0,1.516,4
2000-04-30,47.0,1.465,6
2000-05-31,47.0,1.487,2
2000-06-30,47.0,1.633,4
2000-07-31,47.0,1.551,0
2000-08-31,46.0,1.465,3
2000-09-30,45.0,1.55,5
2000-10-31,43.0,1.532,1
2000-11-30,42.0,1.517,3
2000-12-31,41.0,1.443,6
2001-01-31,41.0,1.447,2
2001-02-28,46.0,1.45,2
2001-03-31,49.0,1.409,5
2001-04-30,49.0,1.552,0
2001-05-31,46.0,1.702,3
2001-06-30,44.0,1.616,5
2001-07-31,41.0,1.421,1
2001-08-31,38.0,1.421,4
2001-09-30,37.0,1.522,6
2001-10-31,36.0,1.315,2
2001-11-30,35.0,1.171,4
2001-12-31,34.0,1.086,0
2002-01-31,33.0,1.107,3
2002-02-28,32.0,1.114,3
2002-03-31,35.0,1.249,6
2002-04-30,37.0,1.397,1
2002-05-31,37.0,1.392,4
2002-06-30,40.0,1.382,6
2002-07-31,42.0,1.397,2
2002-08-31,42.0,1.396,5
2002-09-30,42.0,1.4,0
2002-10-31,41.5,1.445,3
2002-11-30,41.0,1.419,5
2002-12-31,40.0,1.386,1
2003-01-31,42.0,1.458,4
2003-02-28,45.0,1.613,4
2003-03-31,51.0,1.693,0
2003-04-30,51.0,1.589,2
2003-05-31,49.0,1.497,5
2003-06-30,47.0,1.493,0
2003-07-31,46.0,1.513,3
2003-08-31,46.0,1.62,6
2003-09-30,49.0,1.679,1
2003-10-31,50.0,1.564,4
2003-11-30,50.0,1.512,6
2003-12-31,50.0,1.479,2
2004-01-31,50.0,1.572,5
2004-02-29,52.0,1.648,6
2004-03-31,53.0,1.736,2
2004-04-30,51.0,1.798,4
2004-05-31,54.0,1.983,0
2004-06-30,50.0,1.969,2
2004-07-31,50.0,1.911,5
2004-08-31,54.0,1.878,1
2004-09-30,54.0,1.87,3
2004-10-31,59.0,2.0,6
2004-11-30,65.0,1.979,1
2004-12-31,65.0,1.841,4
2005-01-31,65.0,1.831,0
2005-02-28,65.0,1.91,0
2005-03-31,65.0,2.079,3
2005-04-30,63.0,2.243,5
2005-05-31,59.0,2.161,1
2005-06-30,55.0,2.156,3
2005-07-31,55.0,2.29,6
2005-08-31,61.0,2.486,2
2005-09-30,70.5,2.903,4
2005-10-31,79.0,2.717,0
2005-11-30,87.0,2.257,2
2005-12-31,83.0,2.185,5
2006-01-31,79.0,2.316,1
2006-02-28,75.0,2.28,1
2006-03-31,71.0,2.425,4
2006-04-30,67.0,2.742,6
2006-05-31,70.0,2.907,2
2006-06-30,73.0,2.885,4
2006-07-31,73.0,2.981,0
2006-08-31,78.0,2.952,3
2006-09-30,76.0,2.555,5
2006-10-31,70.0,2.245,1
2006-11-30,64.0,2.229,3
2006-12-31,61.0,2.313,6
2007-01-31,61.0,2.24,2
2007-02-28,64.0,2.278,2
2007-03-31,67.0,2.563,5
2007-04-30,67.0,2.845,0
2007-05-31,71.0,3.146,3
2007-06-30,71.0,3.056,5
2007-07-31,76.0,2.965,1
2007-08-31,76.0,2.786,4
2007-09-30,76.0,2.803,6
2007-10-31,80.0,2.803,2
2007-11-30,85.0,3.08,4
2007-12-31,85.0,3.018,0
2008-01-31,85.0,3.043,3
2008-02-29,85.0,3.028,4
2008-03-31,85.0,3.244,0
2008-04-30,88.0,3.458,2
2008-05-31,91.0,3.766,5
2008-06-30,96.0,4.054,0
2008-07-31,103.0,4.062,3
2008-08-31,103.0,3.779,6
2008-09-30,96.0,3.703,1
2008-10-31,85.0,3.051,4
2008-11-30,65.0,2.147,6
2008-12-31,55.0,1.687,2
2009-01-31,55.0,1.788,5
2009-02-28,62.0,1.923,5
2009-03-31,62.0,1.959,1
2009-04-30,62.0,2.049,3
2009-05-31,65.0,2.266,6
2009-06-30,68.0,2.631,1
2009-07-31,68.0,2.527,4
2009-08-31,68.0,2.616,0
2009-09-30,72.0,2.554,2
2009-10-31,72.0,2.551,5
2009-11-30,72.0,2.651,0
2009-12-31,72.0,2.607,3
2010-01-31,76.0,2.715,6
2010-02-28,84.0,2.644,6
2010-03-31,90.0,2.772,2
2010-04-30,90.0,2.848,4
2010-05-31,84.0,2.836,0
2010-06-30,78.0,2.732,2
2010-07-31,76.0,2.729,5
2010-08-31,76.0,2.73,1
2010-09-30,81.0,2.705,3
2010-10-31,81.0,2.801,6
2010-11-30,85.0,2.859,1
2010-12-31,85.0,2.993,4
2011-01-31,85.0,3.095,0
2011-02-28,88.0,3.211,0
2011-03-31,90.0,3.561,3
2011-04-30,96.0,3.8,5
2011-05-31,96.0,3.906,1
2011-06-30,93.0,3.68,3
2011-07-31,89.0,3.65,6
2011-08-31,89.0,3.639,2
2011-09-30,89.0,3.611,4
2011-10-31,84.0,3.448,0
2011-11-30,84.0,3.384,2
2011-12-31,89.0,3.266,5
2012-01-31,89.0,3.38,1
2012-02-29,92.0,3.579,2
2012-03-31,95.0,3.852,5
2012-04-30,95.0,3.9,0
2012-05-31,88.0,3.732,3
2012-06-30,81.0,3.539,5
2012-07-31,81.0,3.439,1
2012-08-31,86.0,3.722,4
2012-09-30,86.0,3.849,6
2012-10-31,86.0,3.746,2
2012-11-30,84.0,3.452,4
2012-12-31,84.0,3.31,0
2013-01-31,89.0,3.319,3
2013-02-28,93.0,3.67,3
2013-03-31,93.0,3.711,6
2013-04-30,93.0,3.57,1
2013-05-31,93.0,3.615,4
2013-06-30,95.0,3.626,6
2013-07-31,95.0,3.591,2
2013-08-31,95.0,3.574,5
2013-09-30,100.0,3.532,0
2013-10-31,100.0,3.344,3
2013-11-30,100.0,3.243,5
2013-12-31,100.0,3.276,1
2014-01-31,100.0,3.313,4
2014-02-28,104.0,3.356,4
2014-03-31,104.0,3.533,0
2014-04-30,104.0,3.661,2
2014-05-31,104.0,3.673,5
2014-06-30,104.0,3.692,0
2014-07-31,104.0,3.611,3
2014-08-31,104.0,3.487,6
2014-09-30,107.0,3.406,1
2014-10-31,107.0,3.171,4
2014-11-30,104.0,2.912,6
2014-12-31,100.0,2.543,2
2015-01-31,72.0,2.116,5
2015-02-28,67.0,2.216,5
2015-03-31,67.0,2.464,1
2015-04-30,67.0,2.469,3
2015-05-31,72.0,2.718,6
2015-06-30,72.0,2.802,1
2015-07-31,72.0,2.794,4
2015-08-31,67.0,2.636,0
2015-09-30,63.0,2.365,2
2015-10-31,63.0,2.29,5
2015-11-30,63.0,2.158,0
2015-12-31,63.0,2.038,3
2016-01-31,60.0,1.949,6
2016-02-29,58.0,1.764,0
2016-03-31,63.0,1.969,3
2016-04-30,67.0,2.113,5
2016-05-31,67.0,2.268,1
2016-06-30,67.0,2.366,3
2016-07-31,67.0,2.239,6
2016-08-31,67.0,2.178,2
2016-09-30,72.0,2.219,4
2016-10-31,72.0,2.249,0
2016-11-30,69.0,2.182,2
2016-12-31,67.0,2.254,5
2017-01-31,67.0,2.349,1
2017-02-28,72.0,2.304,1
2017-03-31,75.0,2.325,4
2017-04-30,75.0,2.417,6
2017-05-31,72.0,2.391,2
2017-06-30,72.0,2.347,4
2017-07-31,72.0,2.3,0
2017-08-31,75.0,2.38,3
2017-09-30,77.0,2.645,5
2017-10-31,80.5,2.505,1
2017-11-30,82.0,2.564,3
2017-12-31,82.0,2.477,6
2018-01-31,79.0,2.555,2
2018-02-28,83.0,2.587,2
2018-03-31,83.0,2.591,5
2018-04-30,83.0,2.757,0
2018-05-31,83.0,2.901,3
2018-06-30,83.0,2.891,5
2018-07-31,83.0,2.849,1
2018-08-31,83.0,2.836,4
2018-09-30,86.0,2.836,6
2018-10-31,86.0,2.86,2
2018-11-30,83.0,2.647,4
2018-12-31,80.0,2.366,0
2019-01-31,80.0,2.248,3
2019-02-28,80.0,2.309,3
2019-03-31,80.0,2.516,6
2019-04-30,83.0,2.798,1
2019-05-31,83.0,2.859,4
2019-06-30,83.0,2.716,6
2019-07-31,80.0,2.74,2
2019-08-31,77.0,2.621,5
2019-09-30,80.0,2.592,0
2019-10-31,80.0,2.627,3
2019-11-30,77.0,2.598,5
2019-12-31,77.0,2.555,1
2020-01-31,47.0,2.548,4
2020-02-29,47.0,2.442,5
2020-03-31,47.0,2.234,1
2020-04-30,43.0,1.841,3
2020-05-31,43.0,1.87,6
2020-06-30,47.0,2.082,1
2020-07-31,52.0,2.183,4
2020-08-31,57.0,2.182,0
2020-09-30,62.0,2.183,2
2020-10-31,62.0,2.158,5
2020-11-30,62.0,2.108,0
2020-12-31,67.0,2.195,3
2021-01-31,72.0,2.334,6
2021-02-28,79.0,2.501,6
2021-03-31,86.0,2.81,2
2021-04-30,93.0,2.858,4
2021-05-31,98.0,2.985,0
2021-06-30,103.0,3.064,2
2021-07-31,108.0,3.136,5
2021-08-31,108.0,3.158,1
2021-09-30,108.0,3.175,3
2021-10-31,103.0,3.291,6
2021-11-30,98.0,3.395,1
2021-12-31,93.0,3.307,4
2022-01-31,93.0,3.315,0
2022-02-28,93.0,3.517,0
2022-03-31,97.0,4.222,3
2022-04-30,97.0,4.109,5
2022-05-31,100.0,4.444,1
2022-06-30,100.0,4.929,3
2022-07-31,97.0,4.559,6
2022-08-31,93.0,3.975,2
2022-09-30,90.0,3.7,4
2022-10-31,90.0,3.815,0
2022-11-30,90.0,3.685,2
2022-12-31,90.0,3.21,5