Year	Index
1980	32.163
1981	35.619
1982	37.91
1983	39.825
1984	42.211
1985	44.336
1986	44.876
1987	46.079
1988	47.66
1989	49.455
1990	51.682
1991	54.286
1992	57.816
1993	60.642
1994	63.468
1995	65.126
1996	66.808
1997	69.018
1998	70.631
1999	71.433
2000	74.903
2001	76.393
2002	78.517
2003	81.64
2004	83.188
2005	84.873
2006	86.784
2007	88.668
2008	92.556
2009	92.723
2010	95.095
2011	98.406
2012	101.443
2013	101.83
2014	101.553
2015	99.99
2016	98.774
2017	99.447
2018	100.227
2019	100.768
2020	102.409
2021	104.134
2022	106.216
2023	108.341
2024	110.508