Year kt 1960 765328.8991696506 1961 780263.726769811 1962 835649.6450771635 1963 883636.6305172709 1964 948856.5724519875 1965 987921.1853843147 1966 1069945.6746597067 1967 1132833.3124770862 1968 1233377.053997599 1969 1353956.0200624194 1970 1451253.8544734914 1971 1545147.5343693404 1972 1629907.2121857717 1973 1660076.6579573732 1974 1648250.8441321477 1975 1602741.349430469 1976 1674851.0977433 1977 1657927.667277566 1978 1718086.518987553 1979 1806479.6915890889 1980 1836172.178379047 1981 1834591.5136510106 1982 1721183.8215179348 1983 1683509.1436819588 1984 1790769.504841905 1985 1811959.1076732648 1986 1772296.385266373 1987 1842565.6693007483 1988 1914478.983376571 1989 2027197.0430796875 1990 2138859.0834861076 1991 2239284.9185727485 1992 2279205.378948356 1993 2378210.067539959 1994 2433240.115248022 1995 2501216.674715911 1996 2608428.526639859 1997 2628647.7883577403 1998 2638659.423843914 1999 2755374.435462864 2000 2876144.2275126283 2001 2831128.792402542 2002 2918549.8584908796 2003 2964645.3396611726 2004 3010976.7353292583 2005 3057027.982531213 2006 3085573.636764141 2007 3195432.383290988 2008 3264583.304814616 2009 3182811.518376734 2010 3389443.312278359 2011 3405753.4387145853 2012 3489227.950322976 2013 3528860.465946635 2014 3513526.4569255766 2015 3771802.261072095 2016 3882613.383778047