Year	kt
1960	7.334
1961	7.334
1962	7.334
1963	7.334
1964	11.001
1965	3.667
1966	7.334
1967	3.667
1968	7.334
1969	3.667
1970	3.667
1971	0
1972	0
1973	3.667
1974	3.667
1975	0
1976	0
1977	0
1978	0
1979	0
1980	3.667
1981	3.667
1982	62.339
1983	139.346
1984	249.356
1985	495.045
1986	330.03
1987	410.704
1988	553.717
1989	685.729
1990	678.395
1991	550.05
1992	465.709
1993	678.395
1994	458.375
1995	124.678
1996	0
1997	0
1998	0
1999	0
2000	0
2001	0
2002	0
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	0
2010	0
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0