Year	kt
1960	80.674
1961	80.674
1962	88.008
1963	99.009
1964	121.011
1965	146.68
1966	157.681
1967	161.348
1968	194.351
1969	333.697
1970	201.685
1971	165.015
1972	205.352
1973	216.353
1974	194.351
1975	223.687
1976	245.689
1977	264.024
1978	271.358
1979	311.695
1980	319.029
1981	333.697
1982	322.696
1983	363.033
1984	418.038
1985	451.041
1986	517.047
1987	564.718
1988	649.059
1989	586.72
1990	542.716
1991	718.732
1992	916.75
1993	1048.762
1994	1232.112
1995	1532.806
1996	1591.478
1997	1859.169
1998	1804.164
1999	1965.512
2000	1939.843
2001	2005.849
2002	1961.845
2003	2031.518
2004	1943.51
2005	2002.182
2006	1826.166
2007	1719.823
2008	2530.23
2009	3032.609
2010	3274.631
2011	3369.973
2012	3670.667
2013	4103.373
2014	4646.089
2015	3142.619
2016	5394.157