Year	Index
1984	19.356
1985	21.523
1986	22.944
1987	24.986
1988	31.957
1989	34.066
1990	35.531
1991	37.13
1992	40.397
1993	47.992
1994	60.23
1995	66.313
1996	70.955
1997	71.239
1998	70.526
1999	69.821
2000	70.868
2001	70.656
2002	70.373
2003	72.625
2004	74.368
2005	75.558
2006	77.674
2007	82.723
2008	83.715
2009	85.306
2010	89.23
2011	92.888
2012	95.21
2013	97.591
2014	99.055
2015	100.639
2016	102.753
2017	104.602
2018	106.59
2019	108.93
2020	111.661
2021	114.787
2022	118.116
2023	121.66
2024	125.309