Year	kt
1960	10462.864441034919
1961	11180.633505591404
1962	11440.923386144856
1963	12493.504047829312
1964	13915.273449059807
1965	14501.021602878833
1966	17001.71564418316
1967	18135.663993243077
1968	23332.30146045808
1969	27646.56190108671
1970	27571.465983930422
1971	30845.647971944494
1972	29967.02574121594
1973	31382.583779611938
1974	34315.07934456491
1975	35291.326267596625
1976	35790.71411668593
1977	38182.51907811363
1978	41193.86535608071
1979	52529.594050822074
1980	51940.09110114524
1981	56798.796941156936
1982	53419.48066912405
1983	58507.22905646243
1984	62337.12083143304
1985	60591.14075754938
1986	64856.58885202641
1987	70819.2046742355
1988	72734.15056172083
1989	69527.55489914742
1990	65003.02589048117
1991	71986.94618601578
1992	69122.03694650345
1993	67552.5322779371
1994	66061.87832238483
1995	69134.26463284553
1996	71181.28380704609
1997	71619.66540878048
1998	75093.28233777778
1999	77028.84856238484
2000	77671.5605717073
2001	80677.0751124119
2002	70382.53766829269
2003	90057.69836986446
2004	91190.80335739836
2005	93211.8168433604
2006	99393.7404474797
2007	116449.7568336043
2008	122966.03928650408
2009	121208.7977812466
2010	116185.98485289974
2011	114822.54376953928
2012	102815.34599999998
2013	106629.02599999998
2014	107421.09799999998
2015	99650.72500000002
2016	101920.59800000001