Year	Index (Units)
1980	26.350
1981	28.850
1982	32.125
1983	35.350
1984	36.750
1985	39.225
1986	42.775
1987	46.425
1988	49.800
1989	53.575
1990	57.450
1991	59.350
1992	59.925
1993	60.975
1994	62.150
1995	65.025
1996	66.750
1997	66.900
1998	67.475
1999	68.425
2000	71.475
2001	74.625
2002	76.900
2003	79.000
2004	80.850
2005	83.000
2006	85.950
2007	87.975
2008	91.800
2009	93.425
2010	96.100
2011	99.325
2012	101.000
2013	103.475
2014	106.075
2015	107.650
2016	109.025
2017	111.200
2018	113.325
2019	115.125
2020	116.175
2021	119.450
2022	127.350
2023	134.475
2024	139.222
2025	143.373
2026	147.209
2027	151.150
2028	155.040
2029	158.914