Year	Index
1980	11.147
1981	12.808
1982	14.201
1983	15.583
1984	16.816
1985	17.69
1986	22.974
1987	24.742
1988	27.297
1989	28.38
1990	29.979
1991	34.152
1992	37.088
1993	37.759
1994	39.24
1995	39.052
1996	40.096
1997	40.857
1998	42.195
1999	44.078
2000	46.867
2001	50.753
2002	56.01
2003	62.529
2004	69.391
2005	75.404
2006	80.041
2007	84.717
2008	93.567
2009	94.902
2010	98.257
2011	104.418
2012	105.617
2013	107.846
2014	109.108
2015	107.958
2016	110.743
2017	118.903
2018	123.497
2019	130.681
2020	137.174
2021	142.868
2022	147.072
2023	150.749
2024	154.518