Annual kt
1960 1130683.060303155
1961 1233950.46538227
1962 1400584.4911998326
1963 1565199.8445618576
1964 1736678.6842727093
1965 1896065.1836157588
1966 2076613.2786024634
1967 2243429.4773001596
1968 2434272.801810104
1969 2642304.3837402435
1970 2951112.033523884
1971 3120252.1673411257
1972 3378425.6036302675
1973 3611562.577879391
1974 3613088.8911994332
1975 3576910.3419231214
1976 3770107.1431007395
1977 3800958.366530975
1978 4014066.171148088
1979 4068225.6760527426
1980 3964008.017842119
1981 3806625.4201805433
1982 3735740.4754430577
1983 3669321.2280645296
1984 3635220.434340016
1985 3605176.6798919966
1986 3639572.8890978084
1987 3453121.408076497
1988 3431930.270884711
1989 3487079.4176517166
1990 3336304.279588509
1991 3350673.8888738393
1992 2713494.1103829746
1993 2602736.3042752147
1994 2402866.1686466406
1995 2394838.364135673
1996 2388012.88057681
1997 2336904.9914897094
1998 2362379.3978779656
1999 2310779.4820627742
2000 2273233.7733154
2001 2326912.77951546
2002 2312200.0705107986
2003 2323942.121901492
2004 2327156.9431549637
2005 2307427.781193219
2006 2316737.7123365197
2007 2256545.2864822573
2008 2276640.0532306004
2009 2173319.331913513
2010 2144583.4284371943
2011 2131950.6478674132
2012 2071526.2956885863
2013 2024913.5387780538
2014 2024410.4309472232
2015 2163011.0032665655
2016 2233132.6596480464