Year	thousand metric tons of CO2 equivalent
1970	32705.08874999998
1971	33387.36289062498
1972	33845.29960937498
1973	34013.376953124985
1974	34224.14140624998
1975	34717.484375000044
1976	35501.941406249985
1977	36707.189843750035
1978	47625.47812499995
1979	48598.647656249974
1980	48146.63125000002
1981	48547.379999999976
1982	48952.689062499994
1983	50852.991875000065
1984	56310.10312500008
1985	51005.39093750005
1986	47749.10312500011
1987	14128.505000000121
1988	47484.76015624989
1989	49286.697187500016
1990	-91331.625
1991	-89508.0703125
1992	-102978.8203125
1993	-109477.9921875
1994	-119752.8828125
1995	-125335.2578125
1996	-135534
1997	-132500.3359375
1998	-128027.171875
1999	-134053.71875
2000	-116691.15625
2001	-120522.7265625
2002	-121031.4765625
2003	-126567.28125
2004	-114430.703125
2005	-116803.890625
2006	-135049.1953125
2007	-97510.390625
2008	-105233.203125
2009	-161638.90625
2010	-166579.09375
2011	-185113.890625
2012	-165148.390625
2013	-176528.203125
2014	-176513.421875
2015	-254017.203125
2016	-333368.109375