Year	kt
1992	4825.772
1993	5093.463
1994	4792.769
1995	4429.736
1996	4965.118
1997	5144.801
1998	4946.783
1999	5016.456
2000	5060.46
2001	5302.482
2002	5427.16
2003	5397.824
2004	5628.845
2005	5427.16
2006	5383.156
2007	6186.229
2008	5900.203
2009	5504.167
2010	6028.548
2011	5885.535
2012	5526.169
2013	5225.475
2014	4624.087
2015	4767.1
2016	4972.452