Year	Index (Units)
1980	36.534
1981	37.865
1982	39.710
1983	42.687
1984	43.383
1985	43.733
1986	43.882
1987	44.886
1988	44.800
1989	44.228
1990	44.478
1991	44.698
1992	46.959
1993	48.629
1994	50.418
1995	50.654
1996	55.625
1997	56.450
1998	57.017
1999	57.519
2000	56.789
2001	57.382
2002	58.331
2003	58.979
2004	60.146
2005	61.203
2006	62.485
2007	64.375
2008	69.221
2009	73.700
2010	75.609
2011	80.028
2012	84.970
2013	89.648
2014	93.411
2015	95.726
2016	97.643
2017	99.331
2018	100.000
2019	100.315
2020	99.763
2021	101.693
2022	104.184
2023	105.784
2024	108.111
2025	110.230
2026	112.435
2027	114.684
2028	116.977
2029	119.317