Year	Index (Units)
1980	8.920
1981	10.509
1982	12.438
1983	15.739
1984	19.531
1985	23.590
1986	27.903
1987	30.546
1988	34.613
1989	38.343
1990	42.684
1991	47.349
1992	51.616
1993	54.354
1994	58.068
1995	61.345
1996	62.812
1997	65.252
1998	67.748
1999	70.032
2000	72.427
2001	75.118
2002	78.266
2003	80.948
2004	82.890
2005	85.653
2006	88.381
2007	91.002
2008	92.584
2009	93.600
2010	94.202
2011	93.952
2012	93.587
2013	95.692
2014	96.366
2015	98.312
2016	100.000
2017	101.512
2018	103.352
2019	105.160
2020	107.267
2021	109.306
2022	114.770
2023	123.046
2024	126.175
2025	128.660
2026	131.222
2027	133.840
2028	136.501
2029	139.223