Year	kt
1960	97208.503
1961	104956.874
1962	114227.05
1963	122144.103
1964	117167.984
1965	128818.043
1966	129404.763
1967	131740.642
1968	136973.451
1969	136463.738
1970	136669.09
1971	140449.767
1972	148641.845
1973	152440.857
1974	161102.311
1975	178465.556
1976	186855.652
1977	196356.849
1978	193236.232
1979	199800.162
1980	218289.176
1981	232634.48
1982	235751.43
1983	257207.047
1984	256073.944
1985	280184.469
1986	302175.468
1987	322846.347
1988	350847.559
1989	375687.817
1990	405430.854
1991	434774.188
1992	455096.702
1993	479108.218
1994	504106.157
1995	521810.433
1996	558066.062
1997	583753.397
1998	579774.702
1999	620042.029
2000	633701.604
2001	643881.196
2002	662153.857
2003	692344.268
2004	741104.367
2005	798071.212
2006	855698.117
2007	931927.713
2008	1007497.249
2009	1088420.605
2010	1093532.403
2011	1210839.733
2012	1363548.281
2013	1326152.215
2014	1487808.243
2015	1488152.941
2016	1516605.194