Year	thousand metric tons of CO2 equivalent
1990	319.1282
1991	313.2576
1992	310.963
1993	335.25
1994	351.4314
1995	373.096
1996	369.7882
1997	373.5132
1998	361.7422
1999	338.7664
2000	317.817
2001	336.6804
2002	350.8354
2003	304.705
2004	340.465
2005	326.9358
2006	313.2576
2007	316.2674
2008	332.1508
2009	307.5658
2010	305.301
2011	310.6948
2012	314.2112
2013	315.1648
2014	141.5202
2015	161.5756
2016	149.4172
2017	167.9826
2018	158.6254
2019	185.9818
2020	178.502