Year	Index
1980	29.753
1981	33.381
1982	36.675
1983	38.74
1984	40.761
1985	42.194
1986	44.078
1987	47.309
1988	48.618
1989	51.937
1990	53.868
1991	56.289
1992	57.489
1993	60.464
1994	61.807
1995	62.428
1996	64.026
1997	64.611
1998	70.226
1999	73.348
2000	72.364
2001	74.004
2002	74.67
2003	75.51
2004	79.908
2005	85.236
2006	89.066
2007	96.91
2008	98.319
2009	96.439
2010	100
2011	103.644
2012	102.652
2013	105.59
2014	106.208
2015	104.555
2016	104.724
2017	108.125
2018	112.052
2019	113.52
2020	115.692
2021	118.4
2022	121.17
2023	124.006
2024	126.907