Year	Index
1980	29.006
1981	32.426
1982	35.697
1983	37.595
1984	40.642
1985	43.001
1986	44.805
1987	46.562
1988	48.087
1989	50.379
1990	53.134
1991	55.2
1992	58.553
1993	61.566
1994	64.822
1995	67.369
1996	69.146
1997	70.693
1998	72.082
1999	73.742
2000	75.765
2001	78.537
2002	78.771
2003	83.014
2004	85.263
2005	86.986
2006	89.67
2007	93.38
2008	97.784
2009	98.048
2010	100.001
2011	101.824
2012	103.56
2013	102.326
2014	100.653
2015	99.479
2016	98.891
2017	100.592
2018	102.171
2019	102.63
2020	105.074
2021	107.728
2022	110.761
2023	113.864
2024	116.902