Year	thousand metric tons of CO2 equivalent
1970	181.04207763672002
1971	184.2409448242214
1972	256.0348437500003
1973	216.78787841799897
1974	118.12279052729946
1975	426.6179882812502
1976	155.3801611328107
1977	-11.837886962891048
1978	-1188.8629931640612
1979	-1221.8402807617013
1980	-1021.0169323730508
1981	1500.010842895509
1982	1180.04188232422
1983	845.3908459472684
1984	1025.3638793945302
1985	1119.0789611816404
1986	1165.3309448242005
1987	1433.1021972655994
1988	-967.4360644530989
1989	589.2037353516015
1990	-816.6679077148001
1991	-86.18371582031068
1992	886.3374633789099
1993	601.4314422607404
1994	236.37899780273074
1995	-80.68411254882994
1996	-69.44604492190047
1997	-124.44604492188046
1998	-175.91088867190047
1999	-145.64517211914062
2000	-145.24948120117006
2001	-159.81823730468932
2002	-181.45376586914062
2003	-145.7822265625
2004	-203.6854858398401
2005	-224.986328125
2006	-218.8627319335901
2007	-450.04006958009995
2008	-478.4046630858993
2009	-74.35110473632994
2010	-321.2166748046893
2011	-434.4308471679997
2012	-609.9317626953107
2013	-586.0155639648401
2014	-581.7414855956995
2015	-1204.7214660644495
2016	-1436.7315368652307