Year	kt
1960	918715.512
1961	888169.402
1962	921572.105
1963	987816.46
1964	1050034.449
1965	1091511.886
1966	1133645.716
1967	1164001.142
1968	1140536.009
1969	1158948.016
1970	1169046.934
1971	1108314.08
1972	1125761.666
1973	1211543.797
1974	1197260.832
1975	1152171.4
1976	1275466.941
1977	1290409.966
1978	1368418.057
1979	1415909.374
1980	1461226.16
1981	1489652.744
1982	1438446.756
1983	1518086.662
1984	1587389.295
1985	1628012.321
1986	1589761.844
1987	1682188.579
1988	1760347.017
1989	1798227.127
1990	1781828.303
1991	1765906.189
1992	1787915.523
1993	1830504.061
1994	1842421.811
1995	1840195.942
1996	1910250.31
1997	1963135.784
1998	1974276.13
1999	1986721.928
2000	2070963.919
2001	2038155.27
2002	2060362.622
2003	2056915.642
2004	2104619.645
2005	2123574.368
2006	2094220.033
2007	2111062.564
2008	2078492.27
2009	1842018.441
2010	1911717.11
2011	1828806.24
2012	1626050.476
2013	1652500.547
2014	1650322.349
2015	1452832.397
2016	1323423.967