Year	kt of CO2 equivalent
1990	20889.526978
1991	21346.286432
1992	21570.455894
1993	19988.19035
1994	18763.457307999997
1995	17635.043688
1996	16856.245010000002
1997	15573.741328
1998	14472.682422
1999	13931.833515999999
2000	13121.343420000001
2001	13551.757394
2002	13966.043865000001
2003	15498.027839
2004	15697.479311
2005	16241.772341
2006	17168.182352
2007	17362.726530999997
2008	17583.10071
2009	17837.867388
2010	18127.834965000002
2011	18141.318377
2012	18122.549289000002
2013	18350.840202
2014	18377.371113
2015	17936.757025
2016	16788.654928
2017	16978.587833999998
2018	17008.475736
2019	17197.423638
2020	16570.624043