Year	thousand metric tons of CO2 equivalent
1990	44.1
1991	46.9
1992	47.7
1993	48.9
1994	48
1995	49.7
1996	50.7
1997	52.1
1998	53.9
1999	54.5
2000	72.08
2001	74.18
2002	91.38
2003	107.88
2004	125.58
2005	143.28
2006	160.78
2007	178.98
2008	196.38
2009	213.08
2010	234.78
2011	181.78
2012	156.18
2013	237.48
2014	224.08
2015	226.68
2016	226.68
2017	212.68
2018	210.48
2019	208.48
2020	206.48