Year metric tons per capita 1990 7.642312793827945 1991 7.424368786293091 1992 7.449714047123808 1993 7.521660820930894 1994 7.858928430462256 1995 7.481792214395741 1996 8.429100536970653 1997 7.944476409666282 1998 7.857703240684992 1999 7.626297403210746 2000 7.913941786241354 2001 7.591343589455659 2002 7.803793087857319 2003 7.689977583664052 2004 7.908920342105082 2005 7.620461423362338 2006 7.610227070728351 2007 7.648363428615445 2008 6.876287750382781 2009 6.61854511317147 2010 6.159973085231149 2011 5.919332693862965 2012 5.799211763678769 2013 6.275558740317021 2014 6.254085391556145 2015 6.219488233604885 2016 4.868247281920111 2017 4.866045428072218 2018 4.817688768176547 2019 4.543450104420032 2020 3.9474653648526594