Year	metric tons per capita
1990	18.697026359574657
1991	17.98289531192227
1992	16.7537092614863
1993	15.180809955272684
1994	13.417649554871252
1995	12.939664378211145
1996	12.448433871802944
1997	11.754620100531179
1998	11.714940391717935
1999	11.665611233092928
2000	11.931422185172124
2001	11.830075275760136
2002	11.935450524681539
2003	12.37734036358014
2004	12.313865191260454
2005	12.31942938712973
2006	12.755240420357303
2007	12.955421489155304
2008	13.037490750657298
2009	11.932603388272918
2010	12.418440263367982
2011	12.980718583842888
2012	12.71685021927153
2013	12.376110932644842
2014	11.87497159866943
2015	11.470496409877413
2016	11.500533426800686
2017	11.657447631647873
2018	11.889447850344826
2019	11.82135235065823
2020	11.372298356559018