Year	Index (Units)
1980	48.740
1981	51.822
1982	54.546
1983	56.338
1984	57.687
1985	58.890
1986	58.816
1987	58.959
1988	59.709
1989	61.368
1990	63.017
1991	65.206
1992	68.496
1993	71.562
1994	73.507
1995	74.780
1996	75.733
1997	76.875
1998	77.333
1999	77.833
2000	78.933
2001	80.433
2002	81.500
2003	82.375
2004	83.842
2005	85.458
2006	86.975
2007	88.950
2008	91.400
2009	91.625
2010	92.650
2011	94.950
2012	97.000
2013	98.558
2014	99.317
2015	99.992
2016	100.358
2017	102.067
2018	104.042
2019	105.450
2020	105.842
2021	109.242
2022	118.708
2023	125.867
2024	128.895
2025	131.498
2026	134.090
2027	136.737
2028	139.456
2029	142.258