Year	Index
1980	0.036
1981	0.046
1982	0.054
1983	0.076
1984	0.119
1985	0.206
1986	0.353
1987	0.609
1988	0.985
1989	1.73
1990	3.877
1991	7.786
1992	12.428
1993	18.375
1994	25.533
1995	36.014
1996	45.532
1997	54.311
1998	61.177
1999	64.498
2000	66.676
2001	69.617
2002	77.826
2003	89.35
2004	98.722
2005	100
2006	106.533
2007	116.566
2008	125.919
2009	135.674
2010	142.332
2011	155.156
2012	168.433
2013	182.167
2014	199.24
2015	217.204
2016	233.159
2017	242.543
2018	258.682
2019	276.831
2020	296.899
2021	318.654
2022	341.939
2023	367.315
2024	393.893