Year	kt
1960	140256.0264530946
1961	145006.01115366814
1962	149107.31560557577
1963	153611.47670214553
1964	163336.76956668947
1965	177286.6755696939
1966	175581.58866606661
1967	179585.0776584525
1968	187528.2739692383
1969	190896.09410377356
1970	197055.5702285846
1971	211853.1422773568
1972	217361.18627546812
1973	217843.06967622985
1974	221179.6721729728
1975	225146.6167973245
1976	241157.77261322972
1977	247878.8147902483
1978	251506.80052015983
1979	278257.99765264225
1980	299183.35498197086
1981	332975.44353313424
1982	350909.00416166993
1983	365295.03434405295
1984	400812.6973780708
1985	414208.595928468
1986	427821.5821628836
1987	436203.2846946143
1988	451473.5500777547
1989	437251.6593637759
1990	410142.17296929605
1991	427258.7588827426
1992	402625.89714018395
1993	444914.86635464756
1994	460312.3884788884
1995	484537.96433908143
1996	490234.67726515734
1997	502373.91233047267
1998	492501.6586507824
1999	508907.97565360833
2000	510833.7735862201
2001	509738.60827838874
2002	492173.63812379906
2003	536262.6182846188
2004	573886.2719782105
2005	565290.5067813889
2006	573056.2995699074
2007	587805.4907747859
2008	624173.9666154536
2009	611624.7280041535
2010	607506.8438937058
2011	599318.6507138811
2012	594574.1878202321
2013	593676.0155575146
2014	627246.524718144
2015	588610.0146413756
2016	607849.0532156877