Year	Index
1980	6.189
1981	7.696
1982	9.345
1983	11.2
1984	13.263
1985	15.854
1986	19.518
1987	22.712
1988	25.773
1989	29.306
1990	35.269
1991	42.145
1992	48.833
1993	55.842
1994	61.918
1995	67.378
1996	72.682
1997	76.637
1998	80.099
1999	81.814
2000	84.184
2001	87.249
2002	90.671
2003	93.799
2004	96.631
2005	100
2006	103.314
2007	106.402
2008	110.903
2009	112.397
2010	117.684
2011	121.354
2012	122.609
2013	121.562
2014	119.868
2015	118.557
2016	118.573
2017	119.922
2018	120.851
2019	122.126
2020	123.888
2021	125.936
2022	128.118
2023	130.374
2024	132.691