YEAR,EMISSION 2010,17020.67732 2011,16144.99206 2012,15400.22419 2013,15223.01432 2014,14227.5416 2015,14418.79753 2016,14950.44652 2017,15145.04931 2018,14546.34966 2019,14757.28866 2020,14799.95552 2021,15585.39029