Year metric tons per capita 1990 0.31947180661306634 1991 0.32240380097112725 1992 0.32348750336966153 1993 0.36665697343633447 1994 0.3401275789893352 1995 0.3694112737938906 1996 0.41771296117442536 1997 0.39023580205911657 1998 0.36594604044053375 1999 0.36774393107951747 2000 0.39965775786368857 2001 0.38329412024610354 2002 0.472943722943723 2003 0.4930966469428008 2004 0.5279348187562354 2005 0.6295586976895807 2006 0.6824335801284933 2007 0.5705994235181082 2008 0.6155858646095839 2009 0.552851050983056 2010 0.5028010556044261 2011 0.4933057858761639 2012 0.5169417119102654 2013 0.5630521308610814 2014 0.522676870896204 2015 0.5201059062438415 2016 0.47842852682828046 2017 0.6040112327811104 2018 0.5987191336566853 2019 0.5923970347952768 2020 0.449933972782553