Year	Index
1983	36.6
1984	36.3
1985	37.6
1986	38.3
1987	39.7
1988	40.9
1989	43.5
1990	46.3
1991	48.4
1992	50
1993	52.1
1994	54.6
1995	58.7
1996	61.5
1997	66.1
1998	69
1999	69.4
2000	70.5
2001	70.9
2002	72.1
2003	73.4
2004	75.5
2005	79.9
2006	82.8
2007	85.3
2008	85.7
2009	88.7
2010	91.43
2011	94.66
2012	98.09
2013	99.73
2014	100.33
2015	99.47
2016	100.59
2017	101.37
2018	101.73
2019	103.705
2020	104.322
2021	105.203
2022	107.237
2023	109.382
2024	111.569