Year	metric tons per capita
1990	0.6474513162937564
1991	0.6830863730964168
1992	0.6900740503654486
1993	0.7031361667106296
1994	0.7256221348960707
1995	0.7651896404365712
1996	0.7872317561139462
1997	0.8173600762291874
1998	0.8187209632895763
1999	0.8662423385131318
2000	0.8850779492261794
2001	0.8837469980087239
2002	0.897242648505059
2003	0.905456601736005
2004	0.9554701574289937
2005	0.9842614726187514
2006	1.0365339215516476
2007	1.1235994817209
2008	1.1803612466615137
2009	1.2788736028408876
2010	1.3380338352242174
2011	1.396878497731993
2012	1.4982041228244098
2013	1.5276744002600142
2014	1.6424652773733281
2015	1.6313234871722753
2016	1.6399140187692798
2017	1.704926720782332
2018	1.7955952985843264
2019	1.7525343662503698
2020	1.5760932319164813