Year	Index
1980	5.508
1981	6.325
1982	7.065
1983	7.992
1984	8.927
1985	10.92
1986	14.408
1987	17.988
1988	21.545
1989	25.348
1990	32.52
1991	37.206
1992	41.381
1993	49.038
1994	54.228
1995	59.668
1996	65.509
1997	68.451
1998	70.196
1999	70.556
2000	72.16
2001	74.863
2002	76.262
2003	77.879
2004	81.347
2005	85.162
2006	88.598
2007	92.656
2008	99.381
2009	99.915
2010	101.093
2011	106.278
2012	108.117
2013	108.936
2014	110.179
2015	109.373
2016	110.034
2017	111.15
2018	112.359
2019	113.086
2020	114.555
2021	115.815
2022	117.089
2023	118.259
2024	119.442