Year kt of CO2 equivalent 1990 3544.179018 1991 3496.030063 1992 3408.133609 1993 3487.524654 1994 4078.360699 1995 4079.841745 1996 3908.034151 1997 3702.706557 1998 3564.438963 1999 3614.401369 2000 3665.113775 2001 3607.007937 2002 3561.112099 2003 3572.183761 2004 3499.262922 2005 3485.974584 2006 3436.85691 2007 3304.341736 2008 3133.841562 2009 3023.683888 2010 3029.718714 2011 3019.352135 2012 3060.733056 2013 3060.841477 2014 3086.507398 2015 3105.39582 2016 3092.440833 2017 3047.750846 2018 3008.433359 2019 2848.125872 2020 2692.195886