Python Decimal and Date Data!

[['2015-01-08', '174.0'], ['2015-01-09', '172.0'], ['2015-01-11', '170.5'], ['2015-01-13', '171.5'], ['2015-01-16', '171.5'], ['2015-01-18', '170.0'], ['2015-01-23', '170.0'], ['2015-01-24', '169.0'], ['2015-01-25', '168.5'], ['2015-01-26', '168.5'], ['2015-01-27', '168.5'], ['2015-01-30', '167.7'], ['2015-01-31', '168.4'], ['2015-02-01', '167.8'], ['2015-02-02', '167.8'], ['2015-02-04', '167.6'], ['2015-02-05', '167.4'], ['2015-02-06', '166.8'], ['2019-02-07', '167.2'], ['2015-02-08', '167.6'], ['2015-02-12', '167.6'], ['2015-02-13', '166.0'], ['2015-02-14', '164.5'], ['2015-02-15', '166.0'], ['2015-02-16', '167.2'], ['2015-02-18', '165.8'], ['2015-02-20', '164.2'], ['2015-02-21', '165.2'], ['2015-02-22', '164.0'], ['2015-02-23', '164.2'], ['2015-02-26', '163.4'], ['2015-02-27', '163.4'], ['2015-02-28', '161.8'], ['2015-03-01', '162.2'], ['2015-03-02', '162.8'], ['2015-03-03', '162.8'], ['2015-03-04', '162.2'], ['2015-03-05', '161.0'], ['2015-03-06', '161.2'], ['2015-03-07', '161.2'], ['2015-03-08', '163.2'], ['2015-03-13', '161.0'], ['2015-03-14', '162.2'], ['2015-03-15', '162.6'], ['2015-03-16', '162.6'], ['2015-03-19', '160.2'], ['2015-03-20', '159.4'], ['2015-03-21', '160.0'], ['2015-03-22', '160.8'], ['2015-03-27', '160.4'], ['2015-03-28', '160.4'], ['2015-04-03', '163.0'], ['2015-04-04', '160.6'], ['2015-04-05', '161.0'], ['2015-04-06', '160.6'], ['2015-04-07', '160.8'], ['2015-04-10', '160.0'], ['2015-04-11', '161.6'], ['2015-04-14', '158.2'], ['2015-04-15', '160.0'], ['2015-04-16', '159.8'], ['2015-04-17', '158.8'], ['2015-04-18', '160.4'], ['2015-04-25', '159.2'], ['2015-04-30', '160.6'], ['2015-05-01', '160.0'], ['2015-05-09', '160.4'], ['2015-05-10', '161.4'], ['2015-05-11', '161.6'], ['2015-05-12', '160.4'], ['2015-05-14', '157.6'], ['2015-05-16', '159.2'], ['2015-05-21', '162.6'], ['2015-05-22', '160.0'], ['2015-05-24', '159.4'], ['2015-05-29', '159.0'], ['2015-05-31', '160.2'], ['2015-06-01', '160.8'], ['2015-06-03', '161.8'], ['2015-06-04', '160.8'], ['2015-06-05', '160.4'], ['2015-06-07', '160.4'], ['2015-06-14', '160.2'], ['2015-06-16', '159.4'], ['2015-06-20', '158.2'], ['2015-07-04', '160.8'], ['2015-07-12', '163.6'], ['2015-07-14', '161.0'], ['2015-07-15', '159.8'], ['2015-07-17', '160.0'], ['2015-07-26', '160.2'], ['2015-08-01', '162.2'], ['2015-08-02', '162.6'], ['2015-08-03', '162.4'], ['2015-08-04', '159.8'], ['2015-08-05', '159.6'], ['2015-08-12', '163.2'], ['2015-08-13', '162.6'], ['2015-08-28', '161.0'], ['2015-09-10', '161.8'], ['2015-09-21', '162.2'], ['2015-09-28', '162.6'], ['2015-10-15', '159.4'], ['2015-10-20', '160.0'], ['2015-11-01', '160.4'], ['2015-11-20', '161.0'], ['2016-01-02', '165.6'], ['2016-01-06', '162.5'], ['2016-01-08', '159.8'], ['2016-01-10', '160.8'], ['2016-01-11', '160.4'], ['2016-01-13', '159.6'], ['2016-01-15', '159.6'], ['2016-01-18', '160.8'], ['2016-01-20', '159.4'], ['2016-01-21', '159.6'], ['2016-01-22', '157.4'], ['2016-01-29', '160.2'], ['2016-02-03', '158.6'], ['2016-02-04', '158.2'], ['2016-02-06', '160.0'], ['2016-02-09', '158.2'], ['2016-02-13', '157.4'], ['2016-02-14', '158.4'], ['2016-02-25', '157.8'], ['2016-03-06', '159.4'], ['2016-03-11', '157.6'], ['2016-03-14', '159.2'], ['2016-03-15', '158.2'], ['2016-03-20', '159.8'], ['2016-03-22', '158.4'], ['2016-03-25', '159.2'], ['2016-03-26', '160.0'], ['2016-04-04', '157.6'], ['2016-04-05', '157.4'], ['2016-04-06', '158.0'], ['2016-04-07', '158.2'], ['2016-04-09', '158.0'], ['2016-04-29', '158.0'], ['2016-05-05', '157.2'], ['2016-05-06', '156.8'], ['2016-05-07', '157.2'], ['2016-05-09', '159.4'], ['2016-05-10', '158.4'], ['2016-05-12', '156.6'], ['2016-05-23', '161.2'], ['2016-05-24', '160.6'], ['2016-05-26', '160.0'], ['2016-05-27', '159.6'], ['2016-06-04', '158.6'], ['2016-06-12', '159.2'], ['2016-06-21', '161.8'], ['2016-07-15', '164.4'], ['2016-07-26', '165.2'], ['2016-07-29', '162.4'], ['2016-08-07', '163.4'], ['2016-08-14', '165.0'], ['2016-08-17', '163.8'], ['2016-09-05', '166.2'], ['2016-09-11', '165.8'], ['2016-09-14', '162.0'], ['2016-09-15', '161.8'], ['2016-09-17', '164.4'], ['2016-09-20', '162.8'], ['2016-09-27', '162.8'], ['2016-09-29', '163.4'], ['2016-09-30', '162.6'], ['2016-10-10', '164.6'], ['2016-10-12', '162.6'], ['2016-10-18', '163.6'], ['2016-11-04', '163.4'], ['2016-11-14', '165.0'], ['2016-12-11', '162.0'], ['2016-12-12', '162.6'], ['2016-12-15', '161.6'], ['2016-12-16', '161.0'], ['2017-01-06', '162.6'], ['2017-01-08', '163.2'], ['2017-02-05', '161.8'], ['2017-02-06', '161.4'], ['2017-03-10', '160.2'], ['2017-04-12', '165.5'], ['2017-05-13', '167.4'], ['2017-05-15', '165.8'], ['2017-05-16', '164.0'], ['2017-05-18', '163.6'], ['2017-05-20', '164.6'], ['2017-05-21', '165.2'], ['2017-05-22', '164.6'], ['2017-05-23', '163.2'], ['2017-05-25', '161.8'], ['2017-05-26', '160.6'], ['2017-05-31', '161.4'], ['2017-06-04', '163.6'], ['2017-06-10', '161.6'], ['2017-06-13', '161.2'], ['2017-07-20', '163.4'], ['2017-08-04', '164.0'], ['2017-10-09', '167.2'], ['2017-10-10', '168.2'], ['2017-10-22', '166.8'], ['2017-10-25', '164.4'], ['2017-10-26', '163.6'], ['2017-10-30', '165.4'], ['2017-11-01', '162.6'], ['2017-11-06', '162.2'], ['2017-11-07', '161.0'], ['2017-11-18', '160.0'], ['2017-11-25', '167.2'], ['2017-11-29', '163.8'], ['2017-11-30', '162.4'], ['2018-03-03', '165.5'], ['2018-05-13', '166.4'], ['2018-05-19', '164.6'], ['2018-10-21', '172.0'], ['2018-10-22', '170.8'], ['2018-10-23', '170.0'], ['2018-10-24', '169.4'], ['2018-10-25', '168.6'], ['2018-10-26', '167.5'], ['2018-10-27', '168.4'], ['2018-10-28', '170.2'], ['2018-12-03', '167.0'], ['2019-01-11', '172.4'], ['2019-01-18', '171.6'], ['2019-01-23', '173.4'], ['2019-01-29', '170.6'], ['2019-03-21', '171.5'], ['2019-03-22', '169.6'], ['2019-03-23', '167.8'], ['2019-03-24', '168.4'], ['2019-03-25', '168.6'], ['2019-03-27', '168.2'], ['2019-03-28', '167.8'], ['2019-03-29', '166.6'], ['2019-04-08', '168.0'], ['2019-04-09', '166.8'], ['2019-04-10', '165.0'], ['2019-04-11', '166.2'], ['2019-04-12', '165.4'], ['2019-04-13', '166.6'], ['2019-04-14', '165.4'], ['2019-04-15', '165.0'], ['2019-04-16', '164.6'], ['2019-04-17', '165.0'], ['2019-04-18', '164.2'], ['2019-04-19', '163.6'], ['2019-04-20', '163.8'], ['2019-04-21', '163.4'], ['2019-04-22', '163.6'], ['2019-04-23', '163.0'], ['2019-04-24', '162.8'], ['2019-04-25', '162.2'], ['2019-04-26', '162.6'], ['2019-04-27', '163.0'], ['2019-04-28', '163.4'], ['2019-04-29', '163.0'], ['2019-04-30', '162.2'], ['2019-05-01', '161.8'], ['2019-05-02', '162.0'], ['2019-05-03', '160.8'], ['2019-05-04', '161.2'], ['2019-05-05', '161.6'], ['2019-05-06', '160.8'], ['2019-05-07', '160.0'], ['2019-05-08', '160.8'], ['2019-05-09', '160.6'], ['2019-05-10', '159.8'], ['2019-05-11', '159.8'], ['2019-05-12', '160.0'], ['2019-05-13', '160.0'], ['2019-05-14', '159.2'], ['2019-05-15', '159.6'], ['2019-05-16', '160.6'], ['2019-05-17', '159.2'], ['2019-05-18', '158.6'], ['2019-05-19', '158.4'], ['2019-05-23', '160.0'], ['2019-05-24', '160.4'], ['2019-05-25', '159.2'], ['2019-05-26', '159.6'], ['2019-05-27', '159.8'], ['2019-05-28', '158.6'], ['2019-05-29', '159.0'], ['2019-05-30', '158.8'], ['2019-05-31', '159.4'], ['2019-06-01', '159.2'], ['2019-06-06', '160.8'], ['2019-06-07', '161.2'], ['2019-06-08', '160.0'], ['2019-06-09', '160.8'], ['2019-06-10', '161.6'], ['2019-06-11', '160.4'], ['2019-06-12', '161.2'], ['2019-06-13', '159.8'], ['2019-06-14', '159.2'], ['2019-06-18', '160.2'], ['2019-06-20', '159.2'], ['2019-06-23', '158.6'], ['2019-06-24', '159.6'], ['2019-06-29', '159.8'], ['2019-07-01', '159.4'], ['2019-07-03', '158.8'], ['2019-07-08', '161.6'], ['2019-07-09', '161.2'], ['2019-07-10', '159.4'], ['2019-07-12', '160.0'], ['2019-07-13', '160.6'], ['2019-07-16', '159.8'], ['2019-07-19', '159.8']]