Year	thousand metric tons of CO2 equivalent
1970	0.48758789059866103
1971	453.2873972655998
1972	608.1197089843972
1973	744.307262499995
1974	852.5380410156049
1975	974.1701453124952
1976	1171.5618882811996
1977	1153.7721394530981
1978	1352.8354644531028
1979	1506.1213503906001
1980	1597.124863281193
1981	1559.5885839843922
1982	1429.5574707030992
1983	1389.8240722656028
1984	1509.2108789062022
1985	1740.475234375007
1986	1769.922373046893
1987	3783.9152636718936
1988	2503.102353515602
1989	3006.375605468702
1990	-925.2302246093968
1991	-884.7265625
1992	-890.8449707031032
1993	-786.0300292968968
1994	-817.9721679688009
1995	-757.8596191406032
1996	-631.3098144530959
1997	-375.4650878906032
1998	-286.3928222656032
1999	49.06372070310317
2000	71.58911132810317
2001	-356.24560546880093
2002	245.02368164060317
2003	185.67431640619907
2004	372.20849609369907
2005	293.21044921869907
2006	357.419921875
2007	348.9914550781032
2008	359.33056640619907
2009	414.7113037109011
2010	855.1665039061991
2011	849.6859130859011
2012	-2791.543090820298
2013	-3040.449584960901
2014	-2934.118896484397
2015	-1787.867065429702
2016	-1927.6451416015989