Year	thousand metric tons of CO2 equivalent
1990	2896.804073
1991	2883.1959
1992	2849.825246
1993	2801.111097
1994	2801.25988
1995	2779.414124
1996	2758.692721
1997	2687.253556
1998	2681.742387
1999	2603.308914
2000	2603.164626
2001	2642.735794
2002	2532.325212
2003	2519.928717
2004	2536.462932
2005	2588.800628
2006	2600.81683
2007	2569.752104
2008	2638.108703
2009	2599.342646
2010	2603.610081
2011	2551.9849
2012	2500.133037
2013	2523.417523
2014	2500.069011
2015	2481.468004
2016	2494.970166
2017	2485.386757
2018	2456.683548
2019	2400.088339
2020	2396.71253