Year	Index
1980	36.183
1981	39.435
1982	41.231
1983	42.669
1984	44.627
1985	46.77
1986	49.959
1987	51.983
1988	54.615
1989	56.994
1990	61.005
1991	64.915
1992	67.191
1993	68.968
1994	69.963
1995	71.1
1996	71.811
1997	72.379
1998	73.444
1999	74.581
2000	75.398
2001	77.323
2002	78.786
2003	81.225
2004	82.568
2005	83.563
2006	85.596
2007	87.905
2008	91.586
2009	93.09
2010	94.644
2011	97.523
2012	98.163
2013	99.099
2014	99.304
2015	101.31
2016	102.09
2017	103.94
2018	106.856
2019	109.452
2020	112.004
2021	114.509
2022	117.037
2023	119.593
2024	122.142