Year	thousand metric tons of CO2 equivalent
1990	178421.8082
1991	183290.9792
1992	188991.36159999997
1993	193423.81360000002
1994	200312.85840000003
1995	206698.46200000003
1996	211616.08779999998
1997	217025.9202
1998	221085.45500000002
1999	226138.3132
2000	222468.1154
2001	226011.246
2002	221272.897
2003	228011.51140000002
2004	234825.07279999997
2005	246588.83140000002
2006	257188.4232
2007	264794.7242
2008	272788.0974
2009	280069.2208
2010	287150.3862
2011	296540.247
2012	291291.9604
2013	294194.5996
2014	297860.92339999997
2015	302312.0004
2016	302315.5466
2017	309525.7162
2018	316358.6476
2019	326601.62279999995
2020	339722.235