Year	kt
1990	11431204.714856
1991	11426219.563150998
1992	11461159.154491002
1993	11543226.822420001
1994	11729499.565089995
1995	11897952.965614006
1996	12265568.566367004
1997	12504640.374490997
1998	12493836.314712998
1999	12571708.396397002
2000	12857970.821997996
2001	12923293.83305
2002	12842274.548272999
2003	13069861.818516001
2004	13209657.272830004
2005	13256910.784322
2006	13201018.606800003
2007	13365230.371925
2008	13096255.973867001
2009	12354107.898672996
2010	12887172.878439
2011	12666917.357993
2012	12522106.257447002
2013	12611681.634887002
2014	12411919.081770003
2015	12370867.601793999
2016	12276032.900255993
2017	12200901.367396995
2018	12221420.260403005
2019	11869050.116716
2020	10864997.070492