Year	Index
1988	61.699
1989	65.16
1990	67.735
1991	71.851
1992	74.881
1993	79.456
1994	82.634
1995	86.022
1996	84.587
1997	86.734
1998	90.833
1999	91.224
2000	92.166
2001	99.211
2002	100.034
2003	101.307
2004	100.637
2005	100
2006	103.08
2007	103.118
2008	128.111
2009	126.436
2010	124.005
2011	122.978
2012	118.268
2013	119.251
2014	122.967
2015	123.746
2016	124.671
2017	127.786
2018	130.168
2019	132.91
2020	136.2
2021	139.538
2022	142.833
2023	146.466
2024	150.13