Year	kt
1962	10875.78049939248
1963	11757.60053988376
1964	12202.279021840906
1965	13050.182906928674
1966	13856.633713189933
1967	14516.114512702641
1968	15311.259933829397
1969	16464.409217548764
1970	21039.32173531123
1971	25432.59719941798
1972	29498.238561116767
1973	36754.589306493086
1974	45768.25023751211
1975	54331.41427772018
1976	63211.04307593593
1977	75921.75700344479
1978	94380.96018229332
1979	102489.90421689034
1980	115889.39438241592
1981	115833.54766041455
1982	123190.29296433472
1983	127535.4401151395
1984	162989.32193982217
1985	182418.3899756033
1986	186026.38087490748
1987	199910.16198200834
1988	208452.88840034706
1989	219952.99714461845
1990	253331.81293343072
1991	268612.95479471213
1992	287560.20400916826
1993	314791.14426264586
1994	340724.14396511146
1995	375697.34410697396
1996	407112.55482001504
1997	430323.20692695415
1998	408758.6220089413
1999	468760.90115069394
2000	469788.31221492303
2001	509577.47547297116
2002	515300.04462641926
2003	552316.3027541287
2004	576307.6399708047
2005	597629.1814112582
2006	657646.1904607418
2007	722778.1599697747
2008	760302.5999141996
2009	786416.9700170112
2010	867208.4175760268
2011	958382.2877615655
2012	1016039.143571957
2013	1070728.0963434435
2014	1107329.7789820493
2015	1138530.0494619275
2016	1178161.8303735883