Year	Index
1980	35.287
1981	38.78
1982	42.223
1983	45.819
1984	48.629
1985	51.027
1986	52.75
1987	54.661
1988	57.884
1989	62.018
1990	63.3
1991	66.18
1992	67.9
1993	69.88
1994	71.03
1995	70.7
1996	71.92
1997	73.07
1998	73.64
1999	75.29
2000	77.45
2001	79.27
2002	80.63
2003	81.59
2004	81.71
2005	82.54
2006	83.56
2007	85.18
2008	88.06
2009	89.65
2010	92.13
2011	94.53
2012	97.79
2013	99.68
2014	100.23
2015	99.98
2016	101.08
2017	101.59
2018	102.95
2019	104.418
2020	105.99
2021	107.898
2022	109.948
2023	112.147
2024	114.39