Year	thousand metric tons of CO2 equivalent
1990	26786.4154
1991	27270.3078
1992	27719.1852
1993	28342.8098
1994	28415.79
1995	29901.2008
1996	31400.9156
1997	30709.943
1998	31697.515
1999	31439.8642
2000	30366.0808
2001	29828.161
2002	30568.6016
2003	31201.6132
2004	31343.8784
2005	32802.5586
2006	30089.1792
2007	33818.3214
2008	33127.5276
2009	32211.0286
2010	33000.967
2011	35434.9118
2012	37607.5702
2013	37163.0138
2014	36573.5698
2015	36476.6602
2016	35689.523
2017	36118.4046
2018	37862.2112
2019	36358.384
2020	39798.0192