Year	Index
1980	83.96
1981	89.333
1982	91.6
1983	89.7
1984	83.1
1985	79.8
1986	85.9
1987	88.1
1988	89.5
1989	90.9
1990	100
1991	104.6
1992	105.6
1993	106.8
1994	106.1
1995	104.9
1996	105.42
1997	105.041
1998	105.491
1999	106.031
2000	104.762
2001	103.881
2002	103.584
2003	103.776
2004	104.562
2005	106.508
2006	109.921
2007	116.397
2008	131.016
2009	135.651
2010	140.067
2011	145.714
2012	149.992
2013	151.861
2014	153.395
2015	153.495
2016	155.184
2017	157.667
2018	159.086
2019	161.472
2020	164.379
2021	170.625
2022	176.426
2023	181.366
2024	185.9