Year	metric tons per capita
1990	2.0163299648203643
1991	2.036840922976065
1992	2.0352990327670533
1993	2.054550107554492
1994	2.112168301186363
1995	2.1269579650120605
1996	2.2326355839361485
1997	2.3359833993270587
1998	2.3939192294988563
1999	2.344874056865564
2000	2.388092150249615
2001	2.3635754980745
2002	2.340717590693267
2003	2.348233903586375
2004	2.4221563577619873
2005	2.4721590275001346
2006	2.517220016276939
2007	2.5701308254805952
2008	2.6172454204228144
2009	2.52025690945108
2010	2.6671397243982278
2011	2.745604436592441
2012	2.836070520122554
2013	2.8788617008281854
2014	2.863164603803169
2015	2.817383016954329
2016	2.7247353337127493
2017	2.6600836635200245
2018	2.553945060401796
2019	2.511561275641117
2020	2.210618020183344