Year	kt
1960	7.334
1961	14.668
1962	7.334
1963	3.667
1964	3.667
1965	3.667
1966	7.334
1967	0
1968	3.667
1969	3.667
1970	0
1971	3.667
1972	3.667
1973	3.667
1974	3.667
1975	0
1976	3.667
1977	3.667
1978	3.667
1979	3.667
1980	3.667
1981	3.667
1982	3.667
1983	36.67
1984	62.339
1985	95.342
1986	121.011
1987	99.009
1988	110.01
1989	198.018
1990	198.018
1991	176.016
1992	190.684
1993	168.682
1994	91.675
1995	168.682
1996	110.01
1997	121.011
1998	161.348
1999	322.696
2000	594.054
2001	689.396
2002	737.067
2003	751.735
2004	667.394
2005	850.744
2006	1136.77
2007	1323.787
2008	1543.807
2009	1411.795
2010	1573.143
2011	1507.137
2012	1587.811
2013	1672.152
2014	1738.158
2015	1686.82
2016	1716.156