Year	Index
1980	5.783
1981	6.649
1982	7.376
1983	8.748
1984	10.364
1985	10.428
1986	11.053
1987	11.942
1988	13.121
1989	14.561
1990	17.52
1991	18.294
1992	21.571
1993	23.576
1994	25.296
1995	27.505
1996	28.208
1997	29.643
1998	34.463
1999	36.393
2000	38.171
2001	43.565
2002	47.207
2003	49.638
2004	54.007
2005	59.634
2006	66.359
2007	75.668
2008	88.022
2009	93.198
2010	100
2011	103.831
2012	115.075
2013	122.252
2014	125.812
2015	126.629
2016	131.795
2017	142.687
2018	149.251
2019	155.967
2020	162.985
2021	170.32
2022	177.984
2023	185.994
2024	194.363