Year	Index (Units)
1980	27.178
1981	30.547
1982	32.991
1983	34.822
1984	36.642
1985	38.622
1986	40.346
1987	42.575
1988	45.190
1989	48.812
1990	52.975
1991	56.540
1992	58.399
1993	60.154
1994	61.264
1995	62.866
1996	65.467
1997	65.370
1998	66.202
1999	67.111
2000	67.879
2001	68.901
2002	70.363
2003	72.047
2004	73.934
2005	76.105
2006	78.226
2007	79.988
2008	82.710
2009	84.274
2010	85.609
2011	87.483
2012	88.829
2013	90.710
2014	91.905
2015	92.512
2016	94.330
2017	96.081
2018	97.928
2019	100.000
2020	105.084
2021	104.957
2022	110.358
2023	118.290
2024	120.346
2025	122.692
2026	125.482
2027	127.982
2028	130.633
2029	133.447