Year	Index (Units)
1980	93.667
1981	96.344
1982	98.039
1983	98.942
1984	100.356
1985	101.621
1986	103.259
1987	103.090
1988	103.719
1989	105.865
1990	108.580
1991	111.733
1992	113.608
1993	114.208
1994	114.421
1995	113.822
1996	113.315
1997	113.886
1998	113.856
1999	112.443
2000	110.941
2001	109.737
2002	108.211
2003	106.471
2004	105.273
2005	104.016
2006	103.120
2007	102.392
2008	101.459
2009	100.881
2010	98.984
2011	97.378
2012	96.642
2013	96.300
2014	97.923
2015	99.991
2016	100.411
2017	100.336
2018	100.336
2019	100.973
2020	101.923
2021	101.730
2022	102.067
2023	105.897
2024	108.285
2025	110.826
2026	113.204
2027	115.468
2028	117.778
2029	120.080