Year	thousand metric tons of CO2 equivalent
1990	229.013
1991	271.329
1992	312.5722
1993	331.4356
1994	372.5894
1995	399.5286
1996	422.6534
1997	433.3516
1998	447.8642
1999	474.3266
2000	477.9324
2001	490.3888
2002	563.0114
2003	589.742
2004	589.6526
2005	618.797
2006	622.8498
2007	644.574
2008	683.1054
2009	700.6576
2010	687.0986
2011	685.251
2012	652.2028
2013	693.8036
2014	710.4916
2015	752.0328
2016	762.0456
2017	776.7966
2018	782.9652
2019	780.7004
2020	781.7136