Year	Index
1980	48.735
1981	51.817
1982	54.54
1983	56.331
1984	57.681
1985	58.883
1986	58.81
1987	58.952
1988	59.703
1989	61.362
1990	63.01
1991	65.199
1992	68.489
1993	71.554
1994	73.498
1995	74.772
1996	75.725
1997	76.875
1998	77.325
1999	77.85
2000	78.942
2001	80.442
2002	81.492
2003	82.383
2004	83.825
2005	85.442
2006	86.967
2007	88.958
2008	91.4
2009	91.625
2010	92.65
2011	94.95
2012	96.992
2013	98.542
2014	99.3
2015	99.975
2016	100.35
2017	102.067
2018	104.033
2019	105.429
2020	107.193
2021	109.267
2022	111.677
2023	114.161
2024	116.704