Year	Index
1980	0.824
1981	1.058
1982	1.359
1983	1.745
1984	2.242
1985	2.879
1986	3.698
1987	4.75
1988	6.101
1989	7.836
1990	11.289
1991	12.626
1992	14.87
1993	17.9
1994	21.174
1995	23.405
1996	25.319
1997	26.888
1998	30.826
1999	32.491
2000	35.3
2001	38.2
2002	43.8
2003	47.9
2004	49.2
2005	54.1
2006	60.8
2007	64.5
2008	69.3
2009	70.6
2010	75.7
2011	79.4
2012	82.6
2013	85.7
2014	89.3
2015	92.1
2016	95.7
2017	100
2018	103.2
2019	107.328
2020	111.621
2021	116.086
2022	120.729
2023	125.559
2024	130.581