Year	thousand metric tons of CO2 equivalent
1990	3700.8625
1991	3825.3175
1992	3720.9475
1993	3843.13
1994	3746.0075
1995	3751.2175
1996	4054.1
1997	4315.5575
1998	4557.725
1999	4890.8525
2000	5148.215
2001	5206.34
2002	5263.7025
2003	5371.915
2004	5299.815
2005	5379.0675
2006	5518.1825
2007	5419.795
2008	4951.2125
2009	5264.9275
2010	5528.6025
2011	5588.2675
2012	5755.685
2013	5903.4375
2014	6117.5825
2015	6211.26
2016	6237.97
2017	6372.21
2018	6423.7025
2019	6632.2475
2020	6647.715