Year	thousand metric tons of CO2 equivalent
1970	1502120.557616039
1971	1188879.239494302
1972	1410323.3856315664
1973	1286835.4454750803
1974	1289175.905238892
1975	1411825.0364224995
1976	1568101.3323816168
1977	1406988.6304711343
1978	1517703.2464250135
1979	1549425.0918304324
1980	1610032.0041337376
1981	1533657.1211464377
1982	1568753.1096284473
1983	1658085.0360365156
1984	1393664.8633674171
1985	1388728.0248616706
1986	1482359.0672611902
1987	1503285.0716766242
1988	1528868.1095222759
1989	1524100.0450365713
1990	-375433.62787510536
1991	-353453.0944308494
1992	-285253.58646018914
1993	-361633.2985789182
1994	-410217.1138102722
1995	-443829.91700831114
1996	-440315.4407525964
1997	-444312.18354123953
1998	-409181.70573988545
1999	-433552.5180571386
2000	-485123.255037965
2001	-451482.3746995343
2002	-456147.6689598861
2003	-537364.9343284378
2004	-518020.525398732
2005	-504930.8229070914
2006	-554852.2856965073
2007	-637401.206891717
2008	-554199.5743474961
2009	-569564.9715560674
2010	-508919.58720940416
2011	-534224.5004892361
2012	-387689.991204486
2013	-408883.3077128982
2014	-548096.8959228691
2015	-543642.5271416162
2016	-517084.56710891443