Year	kt
1960	823577.07798856
1961	837653.0285249379
1962	893604.0387629719
1963	943244.7380737761
1964	1010332.6019702747
1965	1047442.2128892916
1966	1132603.347155764
1967	1196555.180057997
1968	1299437.1275364053
1969	1423773.278540279
1970	1526378.397586101
1971	1624413.1831771028
1972	1711229.0864544692
1973	1736773.4171251685
1974	1714429.9401928282
1975	1653603.4174710014
1976	1726631.828093973
1977	1708558.7575683657
1978	1768939.1417928927
1979	1853272.7019374357
1980	1846370.9393842104
1981	1817412.0895244943
1982	1723013.644880873
1983	1690584.330295591
1984	1785118.0245195264
1985	1794489.7647905822
1986	1727164.0626493243
1987	1801203.5368559274
1988	1873704.4242295406
1989	1979697.4481705304
1990	2068221.9369671252
1991	2170223.554486305
1992	2203276.9014358562
1993	2267578.6267836667
1994	2289307.2392457323
1995	2386834.7020693053
1996	2492291.0623724917
1997	2492485.489168195
1998	2481664.4803719027
1999	2608116.2214683844
2000	2698077.320020621
2001	2654367.780760744
2002	2702350.701460512
2003	2745297.267896785
2004	2758025.7087520855
2005	2780632.446789901
2006	2763891.062333534
2007	2873476.702262098
2008	2901050.099930485
2009	2789753.8223222387
2010	2974262.165351192
2011	2931200.5597380097
2012	2978317.537532877
2013	3006756.4576452645
2014	2946327.879039374
2015	3087405.4716526503
2016	3177686.811904407