Year	thousand metric tons of CO2 equivalent
1990	235.1518
1991	234.3472
1992	275.2626
1993	276.0076
1994	272.1932
1995	271.031
1996	284.292
1997	260.5712
1998	267.6338
1999	268.3788
2000	251.214
2001	270.0476
2002	290.4904
2003	289.209
2004	269.6006
2005	244.7474
2006	245.0156
2007	240.9628
2008	228.566
2009	242.0654
2010	256.9058
2011	247.34
2012	247.0718
2013	218.2552
2014	210.8946
2015	226.8376
2016	223.8874
2017	230.056
2018	232.3506
2019	235.8372
2020	240.188