Year	kt
1960	161206.3581639644
1961	202753.67438090604
1962	249891.43886767467
1963	301351.2753723935
1964	360757.11604328215
1965	415782.2622644112
1966	460001.61037921766
1967	505360.9344603618
1968	548456.2875803214
1969	591487.7168143182
1970	561747.1288700989
1971	629186.8285609133
1972	660163.2783004146
1973	697761.1772275686
1974	744335.055142007
1975	815620.8419715867
1976	898961.6082956619
1977	953089.1587347112
1978	996908.9825622499
1979	1051155.8652279368
1980	1097556.5520799397
1981	1173578.8919664954
1982	1235901.0175741678
1983	1317388.52847555
1984	1398093.0177987847
1985	1519131.1084127284
1986	1479031.8809277234
1987	1681877.0830871912
1988	1788591.738166175
1989	1797332.8157834557
1990	1847701.8773002212
1991	1837645.1103645556
1992	1333491.0742629
1993	1288015.5526534698
1994	1186481.5983687337
1995	1161754.9292430605
1996	1179215.9945023777
1997	1137231.2099460568
1998	1127832.7878802326
1999	1154451.4674189575
2000	1169967.3459135983
2001	1194434.8346883813
2002	1193611.9949965132
2003	1270051.2194661864
2004	1296481.715936367
2005	1319978.770455718
2006	1340258.2634893793
2007	1375927.782205126
2008	1385628.420387821
2009	1274688.8626419068
2010	1410461.0244999276
2011	1455856.9222881647
2012	1422658.5289927253
2013	1405522.4509292839
2014	1398701.1151336436
2015	1321864.5590959596
2016	1328994.7855691388