Year	thousand metric tons of CO2 equivalent
1990	1754.6
1991	1746.85
1992	1342.5
1993	1059.4
1994	631.65
1995	575.75
1996	675.05
1997	654.1
1998	641.05
1999	384.35
2000	431.7
2001	448.55
2002	561.75
2003	465.7
2004	513.85
2005	468.4
2006	430.297288
2007	398.294576
2008	368.691864
2009	328.789151
2010	288.886439
2011	293.261762
2012	304.737085
2013	304.612407
2014	371.08773
2015	335.963053
2016	350.851425
2017	365.339796
2018	396.628168
2019	369.71654
2020	347.804912