Year	thousand metric tons of CO2 equivalent
1990	16731.93135
1991	17269.51648
1992	18657.70389
1993	19687.61612
1994	20857.18224
1995	21164.89464
1996	22372.96671
1997	23065.59479
1998	24351.08928
1999	24801.76536
2000	26324.5487
2001	23617.03448
2002	25125.75494
2003	25658.21175
2004	26029.32019
2005	27164.52309
2006	25557.34759
2007	27189.04819
2008	26851.20545
2009	27437.86329
2010	25915.04664
2011	25941.1573
2012	27358.81573
2013	27782.2354
2014	27731.53387
2015	27897.83153
2016	29261.32994
2017	28881.73855
2018	29275.81637
2019	28787.08178
2020	29300.73459