Year	thousand metric tons of CO2 equivalent
1980	73.69055076456101
1981	185.64831455898303
1982	256.629498230934
1983	206.88697337198298
1984	210.71429349660903
1985	138.91122136783602
1986	97.34288603353498
1987	75.31402073097199
1988	89.58692170190798
1989	78.83785929727603
1990	-33.718440890311996
1991	-26.397685706614993
1992	44.794652700423995
1993	38.96337181329699
1994	11.730932593346012
1995	32.074410498142015
1996	47.863186538219
1997	84.95668417215302
1998	128.95370930433296
1999	144.030230760574
2000	132.103725850582
2001	157.204696953297
2002	225.629176557064
2003	243.490215480328
2004	240.189690947533
2005	265.445667207241
2006	326.965786039829
2007	369.34289342164993
2008	418.194701135159
2009	1369.781805336475
2010	478.37543249130204
2011	489.161252975464
2012	707.827220737934
2013	440.655465602875
2014	434.4590026140211
2015	447.777441799641
2016	471.23656129837