Year	Index (Units)
1980	0.101
1981	0.113
1982	0.124
1983	0.141
1984	0.169
1985	0.187
1986	0.214
1987	0.267
1988	0.358
1989	0.402
1990	0.450
1991	0.487
1992	0.600
1993	0.737
1994	0.992
1995	1.817
1996	2.503
1997	2.732
1998	3.545
1999	5.132
2000	6.650
2001	8.160
2002	9.363
2003	10.260
2004	11.432
2005	13.200
2006	15.038
2007	16.232
2008	17.647
2009	19.132
2010	20.549
2011	22.116
2012	26.825
2013	34.411
2014	42.592
2015	51.903
2016	63.180
2017	70.471
2018	76.965
2019	84.183
2020	91.455
2021	100.000
2022	120.839
2023	157.447
2024	201.361
2025	231.012
2026	249.777
2027	266.727
2028	284.028
2029	302.502