Year	Index
1980	53.369
1981	57.455
1982	58.85
1983	58.152
1984	59.109
1985	58.342
1986	59.866
1987	61.023
1988	61.7
1989	63.634
1990	66.534
1991	69.115
1992	71.477
1993	74.786
1994	76.769
1995	80.277
1996	82.3
1997	82.519
1998	84.264
1999	84.393
2000	85.778
2001	84.333
2002	84.981
2003	84.931
2004	86.307
2005	88.21
2006	88.808
2007	91.768
2008	92.924
2009	92.695
2010	93.841
2011	95.744
2012	97.289
2013	97.618
2014	98.206
2015	98.336
2016	100
2017	101.216
2018	101.156
2019	102.314
2020	103.566
2021	105.06
2022	106.57
2023	108.065
2024	109.618