Year	kt
1960	57971.60300000001
1961	57106.191000000006
1962	57799.25400000002
1963	64399.85400000002
1964	71510.16700000003
1965	75983.90700000002
1966	90156.86200000002
1967	75118.49500000002
1968	92760.43200000004
1969	87564.293
1970	89654.48300000004
1971	104883.53400000004
1972	107534.77500000004
1973	124076.61200000007
1974	138099.22000000003
1975	149287.23700000005
1976	178065.85300000003
1977	200155.86100000003
1978	197849.3180000001
1979	237940.62900000007
1980	226367.577
1981	238696.03100000005
1982	254112.0990000001
1983	283272.0830000001
1984	292813.617
1985	302630.1760000001
1986	299810.253
1987	316869.13700000005
1988	347704.94000000006
1989	359325.663
1990	341698.39400000003
1991	373080.5800000001
1992	391037.8790000001
1993	412790.5230000001
1994	428697.9689999999
1995	435569.927
1996	427293.50800000003
1997	434055.45600000006
1998	489493.162
1999	532089.034
2000	528994.086
2001	541593.898
2002	514219.743
2003	553188.9519999999
2004	577229.8039999999
2005	577097.792
2006	581681.5419999999
2007	550339.693
2008	605084.336
2009	626187.9210000001
2010	622282.566
2011	635296.749
2012	671541.3769999999
2013	691222.1660000001
2014	707929.0180000002
2015	663547.3169999999
2016	668670.1159999998