Year	thousand metric tons of CO2 equivalent
1990	12437.9175
1991	12320.235
1992	12398.4925
1993	12317.5225
1994	12269.7775
1995	12180.5125
1996	9577.9425
1997	9387.62
1998	9765.04
1999	8898.83
2000	8712.135
2001	9490.39
2002	11861.0275
2003	12946.17
2004	13802.9925
2005	13574.1475
2006	13754.16
2007	12104.795
2008	12797.635
2009	12666.18
2010	13526.4975
2011	12726.6
2012	12417.135
2013	13113.605
2014	12841.465
2015	13302.405
2016	13278.8875
2017	13842.19
2018	13133.8775
2019	13582.5175
2020	13486.78