Year	thousand metric tons of CO2 equivalent
1990	34680.1374
1991	34755.4718
1992	36752.191
1993	35600.2124
1994	37044.6184
1995	39070.78
1996	41060.6452
1997	38434.2818
1998	39377.5412
1999	37609.0304
2000	38501.5106
2001	38676.5856
2002	40780.5252
2003	40915.6682
2004	42597.312
2005	43127.9904
2006	44405.8442
2007	45238.1582
2008	47181.9526
2009	50202.0038
2010	49504.9222
2011	51832.0638
2012	53484.593
2013	51360.1212
2014	54068.1962
2015	54344.0548
2016	55165.164
2017	61091.0132
2018	64064.5764
2019	62368.2412
2020	65560.447