Year	kt
1990	2625211.0999999996
1991	2641358.6999999997
1992	2565850.1
1993	2512544.91
1994	2512016.3000000003
1995	2559822.7199999997
1996	2616895.899999999
1997	2589693.9000000004
1998	2630979.9000000004
1999	2614065.7
2000	2632598.970000001
2001	2679463.000000001
2002	2684265.9
2003	2741292.400000001
2004	2754053.6999999997
2005	2746418.0999999996
2006	2729756.3000000007
2007	2692546.8
2008	2635002.3
2009	2438244.8
2010	2502105.4000000004
2011	2412403.1999999997
2012	2382523.5
2013	2333241.5000000005
2014	2209017.5
2015	2256390.7
2016	2256275
2017	2259522.6
2018	2202668.9
2019	2095558.3370000003
2020	1872835.5200000005