Year	kt
1960	25764.281705915084
1961	28265.590692872716
1962	29879.85400074954
1963	31862.535901733852
1964	37910.314094675945
1965	41704.38379820041
1966	45942.80400754306
1967	50739.510749836765
1968	50880.031849967294
1969	58878.34095469458
1970	65676.52390695564
1971	79155.1559167738
1972	80419.84581794862
1973	86762.28466167825
1974	89500.54718043814
1975	94080.77547117938
1976	93275.62754610712
1977	93142.70218111877
1978	98368.56795894628
1979	103188.06190666658
1980	109891.29816965024
1981	117338.91647656864
1982	131888.5471414358
1983	135318.0215581351
1984	139996.99440572484
1985	140019.78161115135
1986	136525.74344574346
1987	125933.49078995793
1988	139191.84648065254
1989	152241.31945493695
1990	123723.1318635803
1991	125357.86030962208
1992	124908.9346230628
1993	114921.2656295295
1994	112546.78265929873
1995	125242.08039202375
1996	129829.05407181168
1997	143807.52450595645
1998	138851.82303840423
1999	127760.49118245397
2000	135555.3966157913
2001	137546.52666971867
2002	135913.0625699227
2003	155138.5294239535
2004	168862.57768454094
2005	153121.58842488274
2006	180337.38643976615
2007	190385.21865634338
2008	201211.0665051034
2009	214820.80915148382
2010	227302.2447673055
2011	258566.67389184082
2012	242047.66900000002
2013	255512.8930000001
2014	287368.12199999986
2015	275751.066
2016	286150.6779999999