Year	Index
1980	33.558
1981	37.027
1982	38.726
1983	40.319
1984	43.611
1985	44.425
1986	45.673
1987	46.699
1988	48.656
1989	50.026
1990	52.923
1991	56.377
1992	60.037
1993	61.93
1994	65.159
1995	66.226
1996	67.52
1997	70.06
1998	70.59
1999	73.08
2000	75.82
2001	77.46
2002	79.87
2003	81.71
2004	84.86
2005	86.07
2006	87.36
2007	90.71
2008	92.49
2009	94.13
2010	96.14
2011	100.35
2012	101.95
2013	100.8
2014	99.91
2015	99.43
2016	99.57
2017	99.23
2018	100.29
2019	101.531
2020	102.884
2021	104.736
2022	106.831
2023	108.967
2024	111.147