Year	Index (Units)
1980	20.181
1981	23.095
1982	26.209
1983	29.431
1984	32.429
1985	35.310
1986	38.929
1987	41.106
1988	43.311
1989	46.259
1990	49.661
1991	53.167
1992	56.767
1993	59.953
1994	62.110
1995	64.225
1996	66.444
1997	68.030
1998	69.717
1999	71.549
2000	74.017
2001	77.058
2002	80.207
2003	83.362
2004	86.596
2005	90.147
2006	93.739
2007	96.940
2008	99.123
2009	99.268
2010	99.419
2011	99.399
2012	99.288
2013	99.681
2014	99.456
2015	100.000
2016	100.322
2017	101.624
2018	102.892
2019	104.381
2020	105.566
2021	108.374
2022	112.862
2023	119.555
2024	122.588
2025	125.653
2026	127.616
2027	129.816
2028	132.122
2029	134.482