Year	Index
1980	11.718
1981	12.558
1982	13.114
1983	14.028
1984	14.501
1985	15.262
1986	15.856
1987	16.305
1988	17.362
1989	18.59
1990	22.531
1991	28.396
1992	30.98
1993	35.196
1994	45.363
1995	56.64
1996	65.841
1997	76.62
1998	85.077
1999	92.598
2000	100
2001	108.084
2002	113.631
2003	120.176
2004	127.93
2005	137.242
2006	144.583
2007	154.162
2008	166.171
2009	178.89
2010	187.255
2011	201.875
2012	209.101
2013	211.974
2014	226.493
2015	242.196
2016	251.444
2017	262.17
2018	266.702
2019	278.265
2020	289.529
2021	300.622
2022	311.122
2023	321.825
2024	332.896