Year	Index
1980	68.954
1981	76.815
1982	83.498
1983	86.17
1984	86.17
1985	84.102
1986	81.999
1987	80.605
1988	80.766
1989	81.736
1990	82.797
1991	83.541
1992	83.289
1993	85.453
1994	88.87
1995	91.66
1996	91.49
1997	95.7
1998	95.3
1999	94.1
2000	93.413
2001	92.315
2002	91.857
2003	93.4
2004	95.5
2005	98
2006	100
2007	103.252
2008	106.9
2009	109.878
2010	112.042
2011	111.627
2012	114.717
2013	118.5
2014	121.642
2015	123.875
2016	127.342
2017	129.108
2018	131.82
2019	136.17
2020	140.527
2021	144.462
2022	147.784
2023	150.888
2024	154.207