Year	thousand metric tons of CO2 equivalent
1990	1.697812
1991	3.55812
1992	5.418428
1993	7.278736
1994	9.139044
1995	10.999352
1996	1718.767152
1997	3426.534952
1998	5134.302752
1999	6842.070552
2000	8549.838352
2001	10057.218
2002	11564.59766
2003	13071.97731
2004	14579.35696
2005	16086.73661
2006	17338.58873
2007	18590.44085
2008	19842.29297
2009	21094.14509
2010	22345.99721
2011	18873.12444
2012	418.5
2013	1232.9
2014	1893.4
2015	1820
2016	1696.7
2017	1789.6
2018	1748.4
2019	2109.9
2020	2016.6