Year	kt
1964	29.336
1965	33.003
1966	33.003
1967	47.671
1968	47.671
1969	66.006
1970	66.006
1971	88.008
1972	77.007
1973	84.341
1974	99.009
1975	102.676
1976	102.676
1977	113.677
1978	113.677
1979	113.677
1980	124.678
1981	124.678
1982	124.678
1983	124.678
1984	124.678
1985	124.678
1986	161.348
1987	157.681
1988	157.681
1989	157.681
1990	124.678
1991	124.678
1992	121.011
1993	113.677
1994	110.01
1995	106.343
1996	102.676
1997	102.676
1998	99.009
1999	91.675
2000	84.341
2001	80.674
2002	77.007
2003	66.006
2004	66.006
2005	62.339
2006	44.004
2007	44.004
2008	44.004
2009	40.337
2010	44.004
2011	40.337
2012	40.337
2013	44.004
2014	47.671
2015	47.671
2016	47.671