Year	Index
1980	0.005
1981	0.006
1982	0.007
1983	0.008
1984	0.01
1985	0.014
1986	0.021
1987	0.031
1988	0.048
1989	0.11
1990	0.23
1991	0.454
1992	1.207
1993	3.418
1994	5.285
1995	7.129
1996	10.202
1997	12.692
1998	15.796
1999	20.028
2000	25.255
2001	30.649
2002	37.465
2003	45.483
2004	53.655
2005	63.488
2006	69.213
2007	76.587
2008	86.122
2009	97.655
2010	105.956
2011	115.13
2012	122.7
2013	131.263
2014	141.515
2015	155.818
2016	183.66
2017	195.74
2018	209.525
2019	232.049
2020	259.895
2021	286.534
2022	315.188
2023	346.707
2024	381.377