Year	Index (Units)
1980	44.037
1981	49.525
1982	54.876
1983	58.067
1984	60.587
1985	62.980
1986	65.609
1987	68.473
1988	71.233
1989	74.783
1990	78.358
1991	82.767
1992	84.000
1993	85.567
1994	85.708
1995	87.550
1996	88.925
1997	90.367
1998	91.267
1999	92.850
2000	95.375
2001	97.783
2002	99.992
2003	102.750
2004	104.658
2005	106.975
2006	109.117
2007	111.450
2008	114.092
2009	114.433
2010	116.467
2011	119.858
2012	121.675
2013	122.817
2014	125.158
2015	126.567
2016	128.375
2017	130.425
2018	133.383
2019	135.983
2020	136.958
2021	141.608
2022	151.242
2023	157.108
2024	161.203
2025	164.191
2026	167.300
2027	170.444
2028	173.711
2029	177.162