Year	%
1980	5.039999999
1981	5.039999999
1982	7.199999999
1983	7.199999999
1984	7.199999999
1985	7.919999999
1986	7.92
1987	7.92
1988	9
1989	11.34
1990	9.36
1991	8.64
1992	8.64
1993	10.98
1994	10.98
1995	12.06
1996	10.08
1997	8.64
1998	6.39
1999	5.85
2000	5.85
2001	5.85
2002	5.31
2003	5.31
2004	5.58
2005	5.58
2006	6.12
2007	7.47
2008	5.31
2009	5.31
2010	5.81
2011	6.56
2012	6
2013	6
2014	5.6
2015	4.35
2016	4.35
2017	4.35
2018	4.35
2019	4.35
2020	4.35
2021	4.35
2022	4.35
2023	4.35