Year	thousand metric tons of CO2 equivalent
1990	3628
1991	3778.3999999999996
1992	3944.9
1993	3968.4999999999995
1994	3989.7999999999993
1995	4127.900000000001
1996	4294.2
1997	4517
1998	4539.4
1999	4721.2
2000	4788.080000000001
2001	4980.380000000001
2002	5168.98
2003	5310.58
2004	5497.38
2005	5634.780000000001
2006	5691.780000000001
2007	5774.279999999999
2008	6042.38
2009	6232.780000000001
2010	6578.98
2011	6827.48
2012	7219.379999999999
2013	7629.58
2014	7755.380000000001
2015	7731.48
2016	7966.679999999999
2017	8011.380000000001
2018	8240.28
2019	8470.48
2020	8429.380000000001