Year	Index
1980	0.01
1981	0.01
1982	0.012
1983	0.012
1984	0.012
1985	0.012
1986	0.012
1987	0.013
1988	0.013
1989	0.013
1990	0.03
1991	0.077
1992	0.24
1993	0.854
1994	2.023
1995	2.675
1996	3.714
1997	9.461
1998	15.053
1999	21.948
2000	31.97
2001	42.985
2002	52.656
2003	60.75
2004	67.951
2005	74.064
2006	78.945
2007	82.762
2008	89.255
2009	94.239
2010	100
2011	105.795
2012	109.328
2013	113.703
2014	114.926
2015	114.241
2016	112.465
2017	113.977
2018	119.254
2019	123.16
2020	126.795
2021	130.312
2022	133.634
2023	137.041
2024	140.535