Year	Index
1980	0.008
1981	0.009
1982	0.011
1983	0.013
1984	0.015
1985	0.021
1986	0.033
1987	0.048
1988	0.074
1989	0.169
1990	0.331
1991	0.66
1992	1.853
1993	4.227
1994	5.848
1995	8.537
1996	11.543
1997	13.688
1998	17.871
1999	21.559
2000	28.048
2001	33.287
2002	42.159
2003	49.394
2004	58.039
2005	67.239
2006	72.779
2007	79.28
2008	92.409
2009	101.557
2010	109.58
2011	117.47
2012	126.078
2013	135.08
2014	145.7
2015	176.46
2016	189.64
2017	201.18
2018	217.274
2019	246.606
2020	272.5
2021	299.75
2022	329.725
2023	362.698
2024	398.967