Year	thousand metric tons of CO2 equivalent
1990	26479.18916
1991	26609.13712
1992	26026.73213
1993	25820.34335
1994	25120.40721
1995	25891.3906
1996	26151.64279
1997	25803.28637
1998	26196.90467
1999	26442.76374
2000	26733.3671
2001	25608.75548
2002	26371.2185
2003	25747.08678
2004	27080.57239
2005	25759.9461
2006	20731.84241
2007	20154.42586
2008	18713.56065
2009	17424.16106
2010	16875.04279
2011	16334.2541
2012	16791.9449
2013	16622.66795
2014	16258.21934
2015	16390.69481
2016	16378.93427
2017	16219.89062
2018	16474.85276
2019	16450.4549
2020	15989.66164