Year	kt of CO2 equivalent
1990	3238858.656
1991	3386235.935
1992	3515192.811
1993	3744912.203
1994	3904475.172
1995	4307873.902
1996	4328947.13
1997	4324409.747
1998	4442509.102
1999	4375022.621
2000	4567274.433
2001	4759814.089
2002	5053060.571
2003	5724514.257
2004	6489937.932
2005	7263558.578
2006	7942463.982
2007	8551053.498
2008	8805331.438
2009	9380446.702
2010	10211636.79
2011	11089792.42
2012	11374795.58
2013	11861843.52
2014	11940737.42
2015	11804696.79
2016	11773340.79
2017	12014198.87
2018	12524335.16
2019	12732245.13
2020	12942868.34