Year	Index
1980	9.388
1981	10.271
1982	11.198
1983	12.118
1984	12.691
1985	13.117
1986	13.688
1987	14.029
1988	14.659
1989	16.103
1990	19.858
1991	26.6
1992	28.925
1993	32.042
1994	39.017
1995	50.5
1996	62.542
1997	75.175
1998	85.45
1999	95.417
2000	105.958
2001	116.209
2002	125.146
2003	134.75
2004	145.683
2005	158.517
2006	167.358
2007	178.967
2008	199.375
2009	210.333
2010	220.217
2011	235.108
2012	247.377
2013	260.206
2014	276.033
2015	284.75
2016	292.508
2017	304.017
2018	317.236
2019	332.146
2020	346.976
2021	361.694
2022	376.269
2023	391.32
2024	406.973