Year	kt
1960	0
1961	0
1962	0
1963	168.682
1964	150.347
1965	154.014
1966	157.681
1967	216.353
1968	986.423
1969	1631.815
1970	1925.175
1971	1932.509
1972	2119.526
1973	3036.276
1974	2497.227
1975	4242.719
1976	2834.591
1977	3087.614
1978	2834.591
1979	8379.095
1980	8643.119
1981	9552.535
1982	8859.472
1983	8294.754
1984	7843.713
1985	8617.45
1986	10784.647
1987	9079.492
1988	9526.866
1989	11532.715
1990	8907.143
1991	14389.308
1992	22071.673
1993	25933.024
1994	25933.024
1995	25933.024
1996	26318.059
1997	28118.556
1998	20036.488
1999	22401.703
2000	24308.543
2001	24627.572
2002	25012.607
2003	26813.104
2004	32863.654
2005	31840.561
2006	36116.283
2007	41503.106
2008	41598.448
2009	44766.736
2010	53439.191
2011	66735.733
2012	81733.763
2013	69141.285
2014	97993.241
2015	99537.048
2016	96145.073