Year	thousand metric tons of CO2 equivalent
1990	19001.1825
1991	18977.4825
1992	19382.7825
1993	19592.5375
1994	19887.8925
1995	19237.43
1996	18351.3125
1997	18114.065
1998	17257.68
1999	17105.03
2000	16896.3075
2001	16463.485
2002	16390.8475
2003	16222.5775
2004	16329.605
2005	16218.37
2006	16109.1375
2007	16032.705
2008	15804.685
2009	15785.4825
2010	15800.2225
2011	15375.86
2012	15283.51
2013	15225.205
2014	15006.6975
2015	14765.705
2016	14600.37
2017	14522.0275
2018	14081.465
2019	14067.2825
2020	14118.79