Year	kt
1990	89
1991	97.7
1992	102.9
1993	112.5
1994	103.4
1995	116.6
1996	131.5
1997	129.1
1998	146.1
1999	145.1
2000	148.6
2001	162.6
2002	170.2
2003	169.2
2004	175
2005	179.1
2006	177.1
2007	186.3
2008	169.5
2009	176.4
2010	192.4
2011	196
2012	198.1
2013	196.7
2014	207.3
2015	232.3
2016	246.7
2017	255.2
2018	248.7
2019	278.7
2020	206.5