Year	kt
1960	6934.297000000001
1961	7422.008000000002
1962	7623.693000000002
1963	8401.097000000002
1964	9699.215000000002
1965	12115.768000000004
1966	13193.866000000004
1967	14701.003
1968	12867.503
1969	14701.003000000002
1970	19306.75500000001
1971	20777.222000000005
1972	21822.317
1973	23824.499000000007
1974	26263.05400000001
1975	27623.51100000001
1976	28243.234000000008
1977	28400.915000000015
1978	31939.570000000018
1979	37616.08600000002
1980	46816.58900000002
1981	50692.60800000003
1982	57135.52700000002
1983	56174.77300000002
1984	64176.16700000003
1985	64106.49400000002
1986	60087.46200000003
1987	52995.484000000026
1988	61513.92500000001
1989	66992.42300000004
1990	49603.50900000002
1991	50963.96600000002
1992	56875.170000000006
1993	57139.194
1994	48199.04800000001
1995	48375.06400000001
1996	53926.902
1997	57461.89000000001
1998	52302.421
1999	53252.174000000006
2000	58694.001999999986
2001	66523.047
2002	67601.145
2003	66193.01699999999
2004	63325.423
2005	72822.95300000001
2006	68616.90400000001
2007	68352.88000000002
2008	71532.16900000001
2009	66706.39700000001
2010	105499.59000000001
2011	118290.086
2012	109181.25800000003
2013	115913.87000000001
2014	124190.28899999999
2015	114733.09599999998
2016	121869.078