Year	Index
1980	50.57
1981	54.711
1982	56.855
1983	57.444
1984	58.94
1985	59.23
1986	58.412
1987	58.694
1988	59.588
1989	60.955
1990	63.058
1991	65.227
1992	66.691
1993	68.219
1994	70.33
1995	71.543
1996	72.53
1997	73.997
1998	73.797
1999	73.814
2000	74.809
2001	75.568
2002	75.272
2003	75.639
2004	76.903
2005	77.263
2006	78.008
2007	79.65
2008	84.929
2009	85.436
2010	87.848
2011	92.458
2012	96.689
2013	98.969
2014	99.984
2015	99.461
2016	98.932
2017	99.502
2018	99.938
2019	101.268
2020	102.674
2021	104.058
2022	105.484
2023	106.981
2024	108.53