Year	thousand metric tons of CO2 equivalent
1990	16945.374971
1991	16778.926928999997
1992	16559.923804999995
1993	15871.934547
1994	15846.064832999997
1995	16333.273594
1996	16712.435367
1997	16240.665399999998
1998	15961.945295
1999	16193.460750999997
2000	16255.778805999995
2001	16986.206417
2002	16387.953803000004
2003	13383.776465999998
2004	13697.094711000002
2005	14773.126689
2006	16313.3025
2007	15015.457500000002
2008	18398.955
2009	15754.095000000001
2010	20979.737500000003
2011	25036.532499999998
2012	20062.547500000004
2013	15972.990000000003
2014	13997.089999999997
2015	13948.9475
2016	13659.834999999997
2017	15113.1875
2018	13388.8675
2019	12316.08
2020	15316.839999999997