Year	thousand metric tons of CO2 equivalent
1990	20472.94659
1991	19268.8863
1992	15205.5096
1993	14877.8884
1994	14350.786
1995	14331.7438
1996	14342.9784
1997	14383.0296
1998	14296.9672
1999	14292.4376
2000	14144.6892
2001	14138.5206
2002	13799.2774
2003	14050.402
2004	14258.257
2005	14604.682
2006	15059.8472
2007	14907.4798
2008	15402.3684
2009	15603.2502
2010	15429.844
2011	15968.2108
2012	15816.9758
2013	15580.6916
2014	15168.1404
2015	15075.82
2016	14294.017
2017	14685.1122
2018	14535.1884
2019	14552.1446
2020	14958.9146