Year	kt
1960	165.015
1961	154.014
1962	91.675
1963	113.677
1964	121.011
1965	73.34
1966	143.013
1967	80.674
1968	62.339
1969	51.338
1970	84.341
1971	14.668
1972	14.668
1973	29.336
1974	7.334
1975	14.668
1976	29.336
1977	3.667
1978	3.667
1979	3.667
1980	3.667
1981	3.667
1982	3.667
1983	3.667
1984	3.667
1985	3.667
1986	3.667
1987	7.334
1988	7.334
1989	7.334
1990	7.334
1991	7.334
1992	7.334
1993	7.334
1994	7.334
1995	7.334
1996	7.334
1997	7.334
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