Year	kt
1960	11.001
1961	11.001
1962	11.001
1963	11.001
1964	11.001
1965	11.001
1966	18.335
1967	14.668
1968	22.002
1969	44.004
1970	36.67
1971	44.004
1972	55.005
1973	58.672
1974	55.005
1975	55.005
1976	66.006
1977	69.673
1978	91.675
1979	91.675
1980	161.348
1981	154.014
1982	161.348
1983	168.682
1984	183.35
1985	190.684
1986	201.685
1987	216.353
1988	223.687
1989	256.69
1990	249.356
1991	271.358
1992	311.695
1993	333.697
1994	366.7
1995	363.033
1996	385.035
1997	407.037
1998	429.039
1999	429.039
2000	465.709
2001	465.709
2002	484.044
2003	484.044
2004	462.042
2005	473.043
2006	484.044
2007	572.052
2008	583.053
2009	557.384
2010	557.384
2011	586.72
2012	535.382
2013	535.382
2014	546.383
2015	557.384
2016	546.383