Year	thousand metric tons of CO2 equivalent
1990	2678.450472
1991	2640.002238
1992	2703.354004
1993	2667.70577
1994	2743.357536
1995	2760.809302
1996	2733.027442
1997	2793.745581
1998	2855.963721
1999	2848.98186
2000	2889.6
2001	2948.05
2002	3018
2003	3111
2004	3231.2
2005	3286.35
2006	3313.653417
2007	3328.956835
2008	3338.360252
2009	3349.063669
2010	3373.467086
2011	3399.524013
2012	3433.78094
2013	3465.337866
2014	3498.494793
2015	3527.051719
2016	3547.651642
2017	3576.651564
2018	3585.251486
2019	3594.651409
2020	3598.651331