Year	Index (Units)
1980	40.348
1981	43.048
1982	45.600
1983	47.521
1984	49.563
1985	51.848
1986	54.628
1987	58.000
1988	58.974
1989	64.983
1990	61.319
1991	62.893
1992	65.353
1993	64.789
1994	66.200
1995	66.745
1996	67.403
1997	68.356
1998	70.441
1999	73.928
2000	74.610
2001	74.873
2002	77.839
2003	78.738
2004	79.678
2005	83.707
2006	84.400
2007	86.888
2008	88.182
2009	87.268
2010	86.925
2011	86.179
2012	88.641
2013	88.478
2014	91.918
2015	96.595
2016	97.988
2017	99.664
2018	100.000
2019	103.975
2020	101.536
2021	102.571
2022	100.341
2023	103.056
2024	104.923
2025	106.909
2026	108.863
2027	110.844
2028	113.053
2029	115.298