Year	thousand metric tons of CO2 equivalent
1970	2367759.67466991
1971	1531435.2199426363
1972	1686494.730530192
1973	1975396.5885341666
1974	1499690.3171471127
1975	1652709.5274676303
1976	1526159.069051424
1977	1895992.672530519
1978	2038252.1343402956
1979	2317156.859332617
1980	2248267.7548304093
1981	1960755.615439049
1982	2132708.7534832316
1983	2668072.347555977
1984	1926364.773861706
1985	1809298.4518557682
1986	1837801.9461536347
1987	2399645.0746403974
1988	1854486.0462238605
1989	1752095.3931873955
1990	-8451.708961998149
1991	-11141.35904755815
1992	-11374.092053794086
1993	-11905.206619471273
1994	-15637.792771589524
1995	-16122.27540395412
1996	-16271.850366961018
1997	-16876.386626735934
1998	-13764.429831792262
1999	-14207.126431346598
2000	-13889.769744220559
2001	-12797.7128354947
2002	-12962.642094295747
2003	-12649.981265959786
2004	-11020.487656800924
2005	-10197.585392294228
2006	-6111.072451814074
2007	-5764.6250812318685
2008	-2781.233076622393
2009	2377.3961278399843
2010	3308.9845429236248
2011	15907.819290108178
2012	17302.487518728023
2013	10361.763190511583
2014	15999.390375383116
2015	18747.220010031047
2016	28595.96776429936