Year	kt
1960	42802.841747913844
1961	45160.56831570889
1962	47288.83530533367
1963	53249.236267814136
1964	57452.887472931914
1965	63380.05204266367
1966	69186.25407015602
1967	74685.72965125555
1968	81049.22339120804
1969	85801.32326489972
1970	93581.80678537117
1971	97715.94282809838
1972	85940.43952809418
1973	91720.19866800826
1974	97806.65653657242
1975	102320.74345825413
1976	103759.20369262742
1977	106813.23187791828
1978	112757.13963316618
1979	130990.59503643763
1980	145020.9819470811
1981	156420.67131197883
1982	159651.80721381426
1983	166386.2201429069
1984	182848.59838073383
1985	183371.28212956016
1986	182848.5983807338
1987	180598.03447049827
1988	196762.3533804821
1989	200127.39999482667
1990	189617.5689130547
1991	200546.18768907135
1992	211866.96116091497
1993	215585.6199275871
1994	206859.21688771425
1995	213653.20058209877
1996	229273.80941403768
1997	236852.71111562083
1998	239996.08558784553
1999	246719.72285705662
2000	253513.70655144105
2001	265524.43303895247
2002	254076.47795282886
2003	263422.8573917063
2004	267866.64270686556
2005	277135.3206539708
2006	286222.69512027473
2007	307586.9052865767
2008	319175.5277737359
2009	311257.79556013545
2010	351008.41860740323
2011	366781.30681534304
2012	351137.2520000001
2013	369732.6089999999
2014	388434.309
2015	379582.1709999999
2016	401415.489