Year	thousand metric tons of CO2 equivalent
1990	288.7024
1991	299.043
1992	315.4628
1993	346.0078
1994	304.4964
1995	389.3668
1996	383.1982
1997	392.466
1998	410.2268
1999	405.0416
2000	416.6934
2001	452.3342
2002	400.2438
2003	429.0306
2004	449.3542
2005	385.4332
2006	357.1828
2007	389.9628
2008	377.417
2009	419.1072
2010	428.375
2011	522.3642
2012	551.896
2013	528.7116
2014	532.8538
2015	540.0952
2016	563.8756
2017	582.3814
2018	552.2834
2019	543.8798
2020	544.3268