Year kt 1960 162176.74199999988 1961 167922.9309999999 1962 175861.98599999992 1963 175498.95299999992 1964 190214.62399999987 1965 191846.43899999987 1966 206697.78899999996 1967 218450.5239999999 1968 239491.76999999984 1969 263437.2799999998 1970 290397.06399999984 1971 320690.1509999999 1972 340352.60499999986 1973 378049.3649999997 1974 396259.68699999986 1975 413685.2709999998 1976 439676.9669999997 1977 458529.0139999997 1978 491055.30399999977 1979 520171.2839999998 1980 545480.918 1981 536555.4399999997 1982 543185.3759999997 1983 512147.88799999974 1984 510347.3909999997 1985 513071.9719999997 1986 545205.8929999997 1987 572609.3839999996 1988 580053.3939999999 1989 595839.8289999998 1990 577787.1879999997 1991 594009.9959999998 1992 608637.6589999998 1993 626455.6119999995 1994 643532.8309999998 1995 643635.5069999999 1996 670056.2419999997 1997 700220.9839999998 1998 732552.9229999998 1999 742171.4639999999 2000 727514.4649999999 2001 741397.727 2002 720532.4969999997 2003 719406.7279999999 2004 741273.0489999999 2005 770572.3789999997 2006 774389.7260000001 2007 790293.505 2008 816054.1800000003 2009 796608.0789999999 2010 820161.2199999999 2011 841044.785 2012 881836.493 2013 904263.8649999999 2014 910952.4729999999 2015 886717.27 2016 868671.9630000005