Year	Index
1980	30.604
1981	32.932
1982	32.251
1983	34.365
1984	36.677
1985	37.666
1986	39.093
1987	46.702
1988	48.213
1989	48.766
1990	48.508
1991	53.492
1992	56.85
1993	59.442
1994	63.306
1995	63.827
1996	71.403
1997	74.233
1998	80.139
1999	83.697
2000	85.812
2001	91.068
2002	95.549
2003	98.071
2004	99.745
2005	100.256
2006	100
2007	106.149
2008	114.977
2009	115.173
2010	116.53
2011	118.718
2012	118.249
2013	118.409
2014	123.981
2015	128.3
2016	128.53
2017	129.309
2018	131.773
2019	134.589
2020	137.824
2021	141.161
2022	144.592
2023	148.24
2024	152.266