Year	thousand metric tons of CO2 equivalent
1990	475.16763
1991	580.4352
1992	644.667971
1993	641.401541
1994	581.945511
1995	616.584881
1996	593.472025
1997	612.931569
1998	603.600913
1999	604.389656
2000	563.0826
2001	570.030499
2002	601.469397
2003	614.403096
2004	600.032994
2005	686.952493
2006	932.326235
2007	995.529777
2008	1068.124719
2009	1037.025261
2010	1062.370003
2011	1090.522083
2012	1114.316964
2013	1225.410044
2014	1233.103924
2015	1342.976605
2016	1332.323638
2017	1306.346271
2018	1302.582104
2019	1291.304137
2020	1225.862771