Year kt of CO2 equivalent 1990 3918.891333 1991 4050.490566 1992 3953.2648 1993 4082.591533 1994 3992.613267 1995 4004.9675 1996 4264.5 1997 4482.6075 1998 4681.425 1999 4971.2025 2000 5185.215 2001 5244.594595 2002 5303.21169 2003 5412.678784 2004 5341.833379 2005 5422.340474 2006 5638.471333 2007 5617.099692 2008 5225.533051 2009 5616.263911 2010 5956.95477 2011 5990.631139 2012 6132.060009 2013 6253.823878 2014 6441.980248 2015 6509.769117 2016 6526.484008 2017 6650.928899 2018 6692.526289 2019 6891.17618 2020 6896.748571