Year	metric tons per capita
1990	1.8520643970377952
1991	1.8845550060562781
1992	1.8799697224857195
1993	1.899269654879354
1994	1.967665273524228
1995	1.9640539345775403
1996	2.0537713341022537
1997	2.146530394253804
1998	2.2080621307699406
1999	2.162352949664054
2000	2.2141997846209502
2001	2.1843794261571605
2002	2.153417583034022
2003	2.169540327312691
2004	2.236324911001232
2005	2.274750600910933
2006	2.3207310312844487
2007	2.3800632942661575
2008	2.4114046341320914
2009	2.3101459422405948
2010	2.4460843814757207
2011	2.527889954171415
2012	2.5896582156885373
2013	2.6365264692054065
2014	2.63999587005208
2015	2.6146464836490577
2016	2.535946506833803
2017	2.486042742386197
2018	2.3849244552373854
2019	2.3628440491967604
2020	2.112544976143294