Year	kt
1960	968713.3788498673
1961	934111.10114668
1962	968962.8175102951
1963	1034796.2827852977
1964	1102361.145820918
1965	1146111.9532168596
1966	1186664.076614372
1967	1221768.8998540095
1968	1201560.700143752
1969	1218518.860837257
1970	1228316.6646902424
1971	1164621.76910685
1972	1188362.4604346382
1973	1264019.4070717886
1974	1246221.2250071361
1975	1213907.9138349348
1976	1335058.0702754273
1977	1355944.8898706725
1978	1438461.3996695909
1979	1492494.2153769953
1980	1542976.1983888962
1981	1573932.269791122
1982	1527470.6510708244
1983	1612221.1041668106
1984	1690948.3472565808
1985	1728430.1742014731
1986	1682881.9411642132
1987	1781890.7482761317
1988	1867459.2134496982
1989	1905843.4214308443
1990	1876317.9541104843
1991	1864546.6502676425
1992	1890231.495860531
1993	1924573.3302565068
1994	1939363.575533646
1995	1939231.5197722428
1996	2011414.6662413743
1997	2070674.689170982
1998	2088986.421418868
1999	2101205.2475642427
2000	2193879.0463444106
2001	2160069.1032096418
2002	2177537.1458707866
2003	2172493.34942831
2004	2215958.036007878
2005	2237717.890914621
2006	2210547.4180059484
2007	2226306.0722000427
2008	2191656.1076941267
2009	1930915.675019447
2010	1999349.9051509707
2011	1907050.2643614446
2012	1702143.741251083
2013	1722208.880553154
2014	1725884.4325788715
2015	1524007.8555495907
2016	1389747.4965742533