Year	Index
1980	0.03
1981	0.035
1982	0.041
1983	0.055
1984	0.083
1985	0.154
1986	0.363
1987	0.654
1988	1.004
1989	1.616
1990	2.214
1991	5.634
1992	9.193
1993	11.804
1994	13.985
1995	19.105
1996	33.492
1997	39.117
1998	49.698
1999	62.137
2000	65.934
2001	62.259
2002	59.817
2003	67.67
2004	76.341
2005	89.034
2006	100.008
2007	106.804
2008	117.475
2009	126.614
2010	148.358
2011	174.133
2012	195.099
2013	208.617
2014	212.37
2015	254.086
2016	268.935
2017	294.517
2018	326.206
2019	362.642
2020	408.854
2021	452.822
2022	496.132
2023	538.81
2024	582.348