Year	kt
1962	3.667
1963	3.667
1964	7.334
1965	7.334
1966	11.001
1967	3.667
1968	14.668
1969	18.335
1970	18.335
1971	22.002
1972	22.002
1973	25.669
1974	25.669
1975	25.669
1976	25.669
1977	29.336
1978	29.336
1979	29.336
1980	29.336
1981	44.004
1982	36.67
1983	40.337
1984	40.337
1985	47.671
1986	55.005
1987	62.339
1988	66.006
1989	66.006
1990	66.006
1991	73.34
1992	84.341
1993	88.008
1994	99.009
1995	110.01
1996	117.344
1997	117.344
1998	121.011
1999	121.011
2000	124.678
2001	128.345
2002	135.679
2003	146.68
2004	161.348
2005	179.683
2006	183.35
2007	187.017
2008	190.684
2009	190.684
2010	198.018
2011	201.685
2012	201.685
2013	201.685
2014	212.686
2015	212.686
2016	212.686