Year	Index
1980	64.87
1981	66.694
1982	67.325
1983	67.465
1984	66.413
1985	64.373
1986	62.331
1987	61.34
1988	61.898
1989	62.516
1990	63.816
1991	66.726
1992	66.478
1993	67.035
1994	67.468
1995	70.873
1996	71.492
1997	71.182
1998	71.058
1999	70.2
2000	68.9
2001	68.5
2002	69
2003	69.3
2004	69.7
2005	70.5
2006	72.6
2007	77.2
2008	84.2
2009	87.8
2010	92.5
2011	95
2012	98.4
2013	100.9
2014	102.833
2015	104.131
2016	105.331
2017	104.168
2018	106.755
2019	106.008
2020	108.382
2021	110.71
2022	113.043
2023	115.365
2024	117.736