Year	kt
1990	1759.988097
1991	2045.742072
1992	2053.032047
1993	2060.322022
1994	2069.302797
1995	2087.581167
1996	2109.523537
1997	2131.465907
1998	2131.424277
1999	2149.692647
2000	1480.42
2001	1520.56
2002	1115.66
2003	1233.96
2004	1392.96
2005	1687.26
2006	1529.27
2007	1411.28
2008	1455.49
2009	1446.77
2010	1744.87
2011	1952.73
2012	2441.63
2013	2289.81
2014	2620
2015	2724.1
2016	2954.886
2017	2444.33
2018	2146.53
2019	2656.82
2020	2601.32