Year metric tons per capita 1990 0.554941321223965 1991 0.5458065789707173 1992 0.5444129181958894 1993 0.7109608866820522 1994 0.8392663781564609 1995 0.9142645695129322 1996 1.0736302738930779 1997 1.0863251561110352 1998 1.091172538521848 1999 1.1097910729251474 2000 0.9884164156509839 2001 0.9418184966969151 2002 0.8957168015165899 2003 0.9249880630149221 2004 0.9298110795170774 2005 0.8128750875470973 2006 0.8212638017214271 2007 0.8114135058186437 2008 0.8886098448970062 2009 0.9394573601874632 2010 0.9759167717598538 2011 0.9837870810682221 2012 0.9475831072626918 2013 1.0310436355189019 2014 1.0914970571178026 2015 1.1251853642888452 2016 1.0125521244465654 2017 0.8297232168240146 2018 0.7558276194761878 2019 0.753638205444169 2020 0.5927429677790373