Year thousand metric tons of CO2 equivalent 1990 5614.2 1991 5763.400000000001 1992 5923.599999999999 1993 6002.8 1994 6030.499999999999 1995 5946.9 1996 6207.8 1997 6440.9 1998 6547.9 1999 6805.7 2000 6946.700000000001 2001 7180 2002 7369.199999999999 2003 7518.099999999999 2004 7739.400000000001 2005 7871.900000000001 2006 7999 2007 8206.5 2008 8416.6 2009 8603.699999999999 2010 8999.4 2011 9362.9 2012 9765.099999999999 2013 10138.9 2014 10385 2015 10573.9 2016 10972 2017 11253.900000000001 2018 11538.499999999998 2019 11749.9 2020 11716.699999999999