Year	thousand metric tons of CO2 equivalent
1990	16535.9
1991	15788.275
1992	15665.7975
1993	15552.0625
1994	15583.555
1995	15474.2925
1996	14460.24
1997	14420.69
1998	14698.835
1999	15731.0775
2000	14328.5925
2001	14273.6475
2002	14962.58
2003	16031.6075
2004	17171.825
2005	16540.44
2006	16130.3925
2007	26735.925
2008	27108.9625
2009	25860.41
2010	25959.8075
2011	26620.65
2012	26356.09
2013	25783.335
2014	26140.7675
2015	26523.33
2016	28939.495
2017	26737.3175
2018	27811.7025
2019	32524.94
2020	33176.5125