Year	Index
1980	74.469
1981	78.13
1982	80.273
1983	81.799
1984	83.649
1985	85.348
1986	85.858
1987	85.965
1988	86.55
1989	88.517
1990	91.245
1991	94.211
1992	95.867
1993	97.056
1994	97.731
1995	97.605
1996	97.737
1997	99.444
1998	100.107
1999	99.766
2000	99.093
2001	98.36
2002	97.451
2003	97.199
2004	97.189
2005	96.914
2006	97.158
2007	97.219
2008	98.565
2009	97.235
2010	96.533
2011	96.27
2012	96.216
2013	96.546
2014	99.212
2015	99.998
2016	99.884
2017	100.352
2018	101.333
2019	102.414
2020	103.995
2021	105.17
2022	106.438
2023	107.855
2024	109.373