Year	thousand metric tons of CO2 equivalent
1990	50338.295
1991	50100.9125
1992	50382.29
1993	50141.9225
1994	50640.4375
1995	51216.4775
1996	50716.74
1997	51128.5525
1998	50521.9825
1999	52237.17
2000	52654.7975
2001	52487.585
2002	53239.1125
2003	53522.5825
2004	52653.6775
2005	53743.125
2006	54348.4725
2007	54719.4475
2008	56893.5375
2009	57488.935
2010	58331.155
2011	58727.005
2012	58815.6625
2013	58939.53
2014	59206.865
2015	59258.0125
2016	58353.0125
2017	60133.05
2018	60161.4075
2019	60413.9225
2020	60544.9625