Year	Index (Units)
1980	56.440
1981	60.148
1982	63.411
1983	64.739
1984	66.605
1985	68.728
1986	68.741
1987	70.023
1988	71.402
1989	75.001
1990	78.994
1991	83.146
1992	86.018
1993	88.155
1994	88.522
1995	90.217
1996	90.895
1997	91.211
1998	91.034
1999	92.530
2000	93.908
2001	94.219
2002	95.049
2003	95.581
2004	96.813
2005	97.758
2006	98.372
2007	100.362
2008	101.083
2009	101.382
2010	101.925
2011	101.328
2012	100.887
2013	100.970
2014	100.660
2015	99.377
2016	99.405
2017	100.278
2018	101.005
2019	101.198
2020	100.411
2021	101.989
2022	104.923
2023	106.749
2024	108.206
2025	109.504
2026	110.867
2027	112.198
2028	113.544
2029	114.907