Annual kt
1960 53016.40838027159
1961 57589.97549619424
1962 65890.37370397041
1963 73039.92647058223
1964 81698.10046317635
1965 91232.82512857442
1966 98960.78208064192
1967 110988.01138027161
1968 126062.29778060075
1969 143545.60779870403
1970 164427.78777257775
1971 181004.73246914227
1972 192709.96356243585
1973 214540.24936607713
1974 219566.99914276914
1975 233019.36865192364
1976 252512.18599475437
1977 274551.17433953943
1978 299130.3707565318
1979 294354.0640292123
1980 284878.96866128384
1981 260949.73158671072
1982 265606.77971909085
1983 263549.56895638775
1984 253388.73666755835
1985 254205.65804289255
1986 262070.76237914024
1987 272034.81798631983
1988 251522.339656758
1989 252542.00064348907
1990 224158.4550479326
1991 190056.45982503606
1992 173914.80900000007
1993 189594.901
1994 175711.63900000008
1995 181894.20100000003
1996 181223.14000000007
1997 179503.31700000004
1998 179459.31300000005
1999 169580.41500000007
2000 157105.2810000001
2001 169562.08000000007
2002 169257.71900000007
2003 170354.15200000006
2004 171597.26500000004
2005 174956.23700000008
2006 180889.44300000006
2007 182953.9640000001
2008 183665.36200000002
2009 173390.42799999999
2010 174050.488
2011 171391.913
2012 166129.768
2013 155576.142
2014 157475.648
2015 166129.768
2016 176467.041