Year	Index (Units)
1980	52.241
1981	56.183
1982	64.794
1983	78.082
1984	87.526
1985	91.203
1986	95.126
1987	97.784
1988	99.451
1989	101.040
1990	102.560
1991	101.942
1992	103.864
1993	100.000
1994	114.880
1995	144.525
1996	150.192
1997	157.375
1998	162.375
1999	165.350
2000	167.408
2001	174.858
2002	179.783
2003	180.917
2004	181.369
2005	184.983
2006	194.058
2007	196.242
2008	206.717
2009	213.000
2010	215.725
2011	222.100
2012	227.396
2013	232.058
2014	236.363
2015	242.694
2016	244.812
2017	246.380
2018	249.001
2019	255.118
2020	261.369
2021	267.281
2022	283.992
2023	304.415
2024	322.376
2025	340.106
2026	356.772
2027	368.902
2028	378.124
2029	387.578