Year kt 1960 205512.99276661038 1961 210880.11635466642 1962 220608.9622458294 1963 219831.5647574832 1964 236007.41249576712 1965 241998.60563912883 1966 253166.21955825842 1967 270425.9387947176 1968 292869.5537827941 1969 324982.05003217864 1970 359419.2637707527 1971 386392.7141236167 1972 410757.3979050106 1973 451185.8047869463 1974 484965.22065076587 1975 499683.44809840043 1976 536265.9799057763 1977 551615.8428126923 1978 584348.762057584 1979 620146.4214007641 1980 656456.1165896346 1981 646383.5866324541 1982 650345.3238326808 1983 607199.7632294574 1984 610399.0528930369 1985 624956.5683599076 1986 641827.5888521934 1987 670531.496114213 1988 684405.0512908559 1989 701010.7101404851 1990 691442.7410531453 1991 701350.3931072605 1992 734825.6248872345 1993 748709.7921377206 1994 760317.9276639682 1995 758916.4302968264 1996 778204.7713950117 1997 818803.3471263793 1998 875711.6148849664 1999 902138.249239795 2000 879983.378860015 2001 908629.9850443965 2002 913387.6014400539 2003 914733.0389125103 2004 897892.646548933 2005 939761.9132265091 2006 950005.9246487388 2007 965710.1698133536 2008 1012621.0896863282 2009 993074.873072589 2010 1024614.1698227505 2011 1035325.3470340273 2012 1089849.2006053177 2013 1102239.3373061512 2014 1105611.7126431882 2015 1066078.186981985 2016 1036571.2926127182