Year	Index
1980	37.021
1981	42.448
1982	48.522
1983	54.533
1984	54.462
1985	71.566
1986	67.843
1987	63.661
1988	65.683
1989	66.061
1990	67.846
1991	65.909
1992	63.927
1993	61.92
1994	72.545
1995	82.279
1996	82.313
1997	83.739
1998	86.473
1999	87.806
2000	87.837
2001	91.61
2002	93.235
2003	96.174
2004	96.449
2005	100
2006	103.334
2007	105.234
2008	112.681
2009	116.605
2010	118.948
2011	121.281
2012	124.548
2013	133.263
2014	148.013
2015	157.134
2016	167.08
2017	173.048
2018	178.173
2019	183.386
2020	188.011
2021	192.784
2022	197.698
2023	202.674
2024	208.003