Year	thousand metric tons of CO2 equivalent
1970	24.799142761229405
1971	24.067438049320344
1972	32.68162292480065
1973	36.01125793457004
1974	36.14528564453053
1975	37.702006530759945
1976	38.68884429932018
1977	56.06731719971094
1978	55.36512390137
1979	54.235993041989786
1980	54.26725433349952
1981	53.73036849976029
1982	53.92592605590971
1983	63.30694976807035
1984	62.38768035888984
1985	69.91330368042031
1986	70.76502044677977
1987	-77.5421490478493
1988	74.6880281066899
1989	90.80369400024028
1990	12.397529602049872
1991	-22.7265625
1992	-19.09138488769986
1993	-6.573211669920056
1994	-28.571380615229828
1995	-67.78668212890989
1996	-28.884979248049603
1997	-9.141967773440228
1998	29.19268798828034
1999	59.40759277344023
2000	32.945858001709894
2001	113.4844818115198
2002	145.87876892090026
2003	-25.0638580322302
2004	-71.14787292480014
2005	-111.37969970703034
2006	-11.852508544920056
2007	252.34216308594023
2008	267.63061523437045
2009	289.66891479492006
2010	268.9791564941397
2011	422.5969543457004
2012	364.92630004882994
2013	471.8424377441397
2014	533.8825988769504
2015	7.49658203125
2016	441.1097412109393