Year	Index
1980	0.051
1981	0.059
1982	0.069
1983	0.102
1984	0.134
1985	0.172
1986	0.211
1987	0.273
1988	0.432
1989	0.76
1990	1.128
1991	1.679
1992	2.591
1993	3.757
1994	4.788
1995	5.884
1996	7.32
1997	9.56
1998	13.011
1999	19.803
2000	38.833
2001	53.463
2002	60.138
2003	64.907
2004	66.686
2005	68.133
2006	70.38
2007	71.982
2008	78.029
2009	82.055
2010	84.972
2011	88.774
2012	93.303
2013	95.842
2014	99.282
2015	103.22
2016	105.004
2017	105.442
2018	105.206
2019	105.814
2020	107.127
2021	108.839
2022	110.256
2023	111.458
2024	112.531