Year	Index
1980	11.828
1981	13.532
1982	15.094
1983	16.697
1984	19.811
1985	23.419
1986	25.502
1987	29.647
1988	34.939
1989	37.958
1990	42.128
1991	46.154
1992	50.108
1993	56.722
1994	64.558
1995	71.1
1996	75.198
1997	80.877
1998	87.203
1999	91.661
2000	100
2001	110.784
2002	123.508
2003	129.26
2004	133.429
2005	143.57
2006	150.459
2007	165.217
2008	186.537
2009	194.933
2010	203.705
2011	219.519
2012	237.663
2013	248.164
2014	263.475
2015	276.412
2016	300.41
2017	314.547
2018	331.064
2019	348.228
2020	368.425
2021	387.583
2022	409.675
2023	431.798
2024	455.007