Year kt 1960 73771.18428776454 1961 77617.52809281851 1962 85288.1736180838 1963 94850.76475901557 1964 92341.64076775304 1965 105433.07669186585 1966 119762.3953057727 1967 96499.75116789216 1968 112342.4456518143 1969 113246.06328293988 1970 125834.2649978486 1971 145816.70366989513 1972 145776.29800346264 1973 170306.21077036092 1974 185608.9386210495 1975 201756.51222441645 1976 239039.9226143561 1977 282285.00542428327 1978 289018.05874889006 1979 349031.49312828254 1980 341137.6952043436 1981 372540.2445071608 1982 405030.07356125105 1983 451463.5307769384 1984 459386.714640101 1985 485492.44839786465 1986 510452.13052590797 1987 507307.83502898295 1988 548646.5050317792 1989 560084.9818745645 1990 507080.0940000002 1991 590574.017 1992 635971.4770000002 1993 700910.38 1994 716429.1240000001 1995 691999.5700000001 1996 690048.7260000001 1997 658937.8980000003 1998 708636.7490000003 1999 768958.8990000002 2000 859042.4210000002 2001 875441.2450000002 2002 838840.9180000002 2003 899449.0939999999 2004 958773.8200000003 2005 961491.0670000002 2006 1010350.175 2007 957226.346 2008 1047764.5759999999 2009 1114408.6339999998 2010 1131221.8290000001 2011 1110789.3050000002 2012 1257847.006 2013 1231371.2660000003 2014 1289071.5110000004 2015 1214998.1109999996 2016 1138024.1139999998