Year	Index
1980	20.015
1981	23.843
1982	28.098
1983	32.418
1984	35.981
1985	39.35
1986	42.358
1987	44.958
1988	48.024
1989	51.068
1990	54.508
1991	58.698
1992	61.33
1993	63.702
1994	66.008
1995	69.904
1996	73.087
1997	74.989
1998	76.886
1999	78.132
2000	79.667
2001	82.046
2002	84.798
2003	87.496
2004	89.704
2005	91.398
2006	93.134
2007	95.401
2008	97.767
2009	99.682
2010	100
2011	101.468
2012	102.869
2013	104.116
2014	105.114
2015	106.095
2016	107.317
2017	107.779
2018	108.681
2019	109.677
2020	110.955
2021	112.336
2022	113.956
2023	115.711
2024	117.586