Year	thousand metric tons of CO2 equivalent
1970	120216.30457114159
1971	92678.39638316826
1972	102267.76973652489
1973	96038.5514853409
1974	73223.92556211849
1975	49980.63852919877
1976	52250.05648733859
1977	77881.76884762279
1978	62986.6622364943
1979	76369.50638407133
1980	74381.82934535599
1981	58368.581067413805
1982	113830.58372060885
1983	80043.69863760768
1984	58555.52789171311
1985	50146.02690947036
1986	63163.53046755088
1987	78715.5967113389
1988	47739.175858004106
1989	59874.371787977274
1990	-12191.447115779063
1991	-12649.044048503609
1992	-6155.909716919605
1993	289.59289570101214
1994	-4776.128174438767
1995	-6406.100104421341
1996	-17512.94867770356
1997	-20073.743561729578
1998	-17686.745819598727
1999	-19865.98639877112
2000	-22221.530138209684
2001	-18520.164946765482
2002	-9374.383823931435
2003	-15332.160343856653
2004	-5399.4220320880795
2005	1529.0664720530413
2006	9205.71609909779
2007	9855.434187114224
2008	14733.61675935939
2009	8057.6267372358925
2010	25108.569503887928
2011	26701.632291316375
2012	20120.839457288588
2013	42738.97407130917
2014	53252.61057850744
2015	41948.733202696014
2016	52463.68636915106