Year	kt
1992	12625.481
1993	17938.964
1994	24363.548
1995	25669
1996	20755.22
1997	21180.592
1998	20051.156
1999	24535.897
2000	24968.603
2001	26116.374
2002	26490.408
2003	29398.339
2004	30909.143
2005	32643.634
2006	34044.428
2007	39882.292
2008	40105.979
2009	34524.805
2010	39717.277
2011	43728.975
2012	45104.1
2013	46306.876
2014	46985.271
2015	48899.445
2016	48899.445