Year	Index
1980	13.877
1981	15.903
1982	17.923
1983	19.411
1984	20.673
1985	22.822
1986	25.287
1987	27.336
1988	30.178
1989	33.589
1990	37.619
1991	42.359
1992	49.349
1993	55.616
1994	61.066
1995	67.661
1996	74.157
1997	79.941
1998	85.029
1999	92.183
2000	100
2001	105.752
2002	116.962
2003	124.41
2004	134.226
2005	149.373
2006	162.103
2007	175.3
2008	199.277
2009	210.927
2010	226.557
2011	247.343
2012	265.732
2013	276.544
2014	286.914
2015	295.808
2016	304.64
2017	314.34
2018	325.465
2019	337.367
2020	350.187
2021	364.194
2022	378.58
2023	393.534
2024	409.078