Year	kt
1960	576461.2174218551
1961	627080.22343495
1962	706164.2838190449
1963	772694.060927165
1964	834656.0713068307
1965	892474.8285945154
1966	958144.2580660492
1967	1049227.9039077938
1968	1122838.568472291
1969	1208097.88722162
1970	1318539.3548865542
1971	1413947.3796385084
1972	1538686.4665798687
1973	1655852.2302465423
1974	1770182.2428215733
1975	1868058.1068468934
1976	1920409.1284967996
1977	1998553.5986988337
1978	2136039.4150980366
1979	2132909.334551772
1980	2172094.7732891818
1981	2202631.4542061724
1982	2227502.2931216974
1983	2230292.762758783
1984	2179509.6114729187
1985	2203248.414024514
1986	2212061.317117703
1987	1976478.8896022134
1988	1954104.1908691525
1989	1938708.4963197156
1990	1855990.5992074078
1991	1845202.292659162
1992	1022251.4773553599
1993	905213.174166955
1994	711054.8543063707
1995	684772.1715207348
1996	635036.5521580799
1997	601747.4177599078
1998	594469.3105113445
1999	571657.7830749457
2000	575381.7290854857
2001	573449.9556737364
2002	573646.1514108671
2003	582791.8911571178
2004	593277.0441087805
2005	580546.9591649482
2006	601291.6863565412
2007	605214.7284642844
2008	622502.5859999999
2009	599594.8369999999
2010	596745.578
2011	646044.726
2012	645325.994
2013	623654.024
2014	637647.2959999999
2015	630540.65
2016	671746.729