Year	thousand metric tons of CO2 equivalent
1990	422.415
1991	434.335
1992	450.3078
1993	381.2314
1994	390.7376
1995	401.6444
1996	403.939
1997	396.9956
1998	395.446
1999	376.4038
2000	374.884
2001	335.6374
2002	354.173
2003	376.5826
2004	374.9734
2005	387.1914
2006	352.3254
2007	386.059
2008	377.1488
2009	361.3846
2010	397.9492
2011	391.3634
2012	394.701
2013	395.5354
2014	393.9262
2015	372.0828
2016	360.6396
2017	372.5298
2018	377.2978
2019	400.4226
2020	377.7448