Year	Index
1980	33.128
1981	33.391
1982	34.746
1983	32.638
1984	35.989
1985	36.403
1986	36.553
1987	36.064
1988	37.306
1989	37.231
1990	37.645
1991	38.435
1992	39.4
1993	40.538
1994	62.432
1995	64.382
1996	68.833
1997	70.51
1998	75.025
1999	72.58
2000	79.723
2001	81.571
2002	82.588
2003	83.214
2004	85.435
2005	88.603
2006	93.267
2007	93.534
2008	101.369
2009	100.904
2010	104.958
2011	106.875
2012	114.111
2013	112.014
2014	111.161
2015	113.719
2016	110.703
2017	114.004
2018	115.107
2019	117.374
2020	119.627
2021	121.922
2022	124.262
2023	126.647
2024	129.078