Year	Index (Units)
1980	0.001
1981	0.001
1982	0.002
1983	0.009
1984	0.137
1985	17.094
1986	56.413
1987	64.296
1988	75.988
1989	86.008
1990	100.000
1991	117.689
1992	133.224
1993	141.959
1994	153.248
1995	170.760
1996	190.535
1997	201.405
1998	215.606
1999	220.805
2000	232.277
2001	236.621
2002	243.295
2003	258.696
2004	279.308
2005	295.901
2006	336.332
2007	361.131
2008	398.621
2009	388.975
2010	423.117
2011	484.902
2012	519.331
2013	550.467
2014	561.749
2015	535.793
2016	528.534
2017	560.570
2018	577.703
2019	573.699
2020	563.061
2021	585.366
2022	615.136
2023	629.364
2024	657.585
2025	684.981
2026	711.481
2027	738.563
2028	766.651
2029	795.784