Year thousand metric tons of CO2 equivalent 1990 6080.200000000001 1991 6184.700000000001 1992 6560.000000000001 1993 6681.9 1994 6874.200000000001 1995 7075.700000000001 1996 7291.6 1997 7619.799999999999 1998 7665.099999999999 1999 7859 2000 8091.5 2001 8398.300000000001 2002 8668.8 2003 8826.999999999998 2004 9154.6 2005 9410.6 2006 9584.400000000001 2007 9523.399999999998 2008 9933.300000000001 2009 10235 2010 10719.900000000003 2011 11248.999999999998 2012 11548.899999999998 2013 12121.099999999999 2014 12337.900000000001 2015 12401.499999999998 2016 12876.6 2017 13037.800000000001 2018 13318.400000000001 2019 13819.100000000002 2020 13504.300000000001