Year	Index
1980	76.09
1981	79.186
1982	81.125
1983	82.481
1984	84.416
1985	85.754
1986	85.567
1987	86.203
1988	87.17
1989	89.431
1990	92.645
1991	95.221
1992	96.2
1993	97.233
1994	98.033
1995	97.411
1996	97.915
1997	100.016
1998	100.541
1999	99.54
2000	98.79
2001	97.806
2002	97.29
2003	96.995
2004	97.496
2005	96.765
2006	97.111
2007	97.666
2008	98.695
2009	96.692
2010	96.452
2011	96.168
2012	95.937
2013	97.321
2014	99.757
2015	99.912
2016	100.206
2017	100.77
2018	101.612
2019	103.348
2020	104.385
2021	105.643
2022	106.917
2023	108.421
2024	109.947