Year	Index (Units)
1980	82.383
1981	90.933
1982	96.533
1983	99.583
1984	103.933
1985	107.600
1986	109.692
1987	113.617
1988	118.275
1989	123.942
1990	130.658
1991	136.167
1992	140.308
1993	144.475
1994	148.225
1995	152.383
1996	156.858
1997	160.525
1998	163.008
1999	166.583
2000	172.192
2001	177.042
2002	179.867
2003	184.000
2004	188.908
2005	195.267
2006	201.558
2007	207.344
2008	215.254
2009	214.565
2010	218.076
2011	224.923
2012	229.586
2013	232.952
2014	236.715
2015	237.002
2016	240.005
2017	245.121
2018	251.100
2019	255.653
2020	258.846
2021	270.966
2022	292.621
2023	304.701
2024	313.559
2025	319.831
2026	326.416
2027	333.270
2028	340.324
2029	347.617