Year	Index (Units)
1980	0.053
1981	0.054
1982	0.054
1983	0.054
1984	0.055
1985	0.055
1986	0.056
1987	0.056
1988	0.058
1989	0.060
1990	0.075
1991	0.253
1992	0.409
1993	0.688
1994	1.256
1995	2.139
1996	3.485
1997	35.311
1998	47.299
1999	48.869
2000	52.476
2001	55.686
2002	57.829
2003	59.096
2004	62.394
2005	66.508
2006	71.002
2007	78.849
2008	85.238
2009	88.595
2010	89.272
2011	94.729
2012	95.783
2013	95.851
2014	97.137
2015	100.000
2016	103.324
2017	108.297
2018	112.883
2019	118.797
2020	123.858
2021	132.694
2022	154.167
2023	165.746
2024	171.877
2025	177.905
2026	182.285
2027	186.495
2028	190.605
2029	194.825