Year	kt
1991	873185.40639104
1992	807182.019507268
1993	749664.78387142
1994	749360.285175299
1995	734036.296576566
1996	721630.452414759
1997	702520.829109615
1998	692481.672165899
1999	667233.339223753
2000	694070.471492152
2001	690947.912077275
2002	697864.509606115
2003	709565.851526258
2004	714834.941208705
2005	686313.608268827
2006	694349.336962811
2007	703610.606014689
2008	642575.760765502
2009	563304.581448234
2010	599098.432320293
2011	609757.698007974
2012	632457.10897191
2013	613408.831843913
2014	590606.675405196