Year	Index
1980	59.042
1981	62.585
1982	65.373
1983	67.444
1984	67.958
1985	66.987
1986	66.159
1987	66.529
1988	70.214
1989	73.116
1990	76.517
1991	79.909
1992	80.705
1993	83.451
1994	86.516
1995	89.362
1996	90.677
1997	91.616
1998	90.372
1999	86.849
2000	90.096
2001	88.076
2002	86.976
2003	85.491
2004	89.124
2005	91.108
2006	92.675
2007	98.107
2008	96.643
2009	100.046
2010	100
2011	101.329
2012	101.784
2013	101.618
2014	101.454
2015	104.992
2016	106.038
2017	108.466
2018	110.078
2019	111.444
2020	112.983
2021	114.511
2022	116.078
2023	117.727
2024	119.431