Year	Index (Units)
1980	16.806
1981	18.302
1982	20.804
1983	22.671
1984	24.620
1985	26.479
1986	28.110
1987	30.421
1988	32.598
1989	35.115
1990	37.399
1991	40.276
1992	42.498
1993	44.215
1994	46.613
1995	49.518
1996	51.366
1997	53.215
1998	54.865
1999	56.384
2000	57.946
2001	59.073
2002	60.676
2003	62.326
2004	64.627
2005	65.895
2006	68.625
2007	70.973
2008	74.462
2009	77.098
2010	80.460
2011	83.067
2012	86.898
2013	91.518
2014	95.751
2015	100.000
2016	103.629
2017	109.131
2018	117.106
2019	124.977
2020	132.020
2021	139.554
2022	151.148
2023	165.240
2024	177.397
2025	189.715
2026	203.086
2027	219.163
2028	237.034
2029	258.315