Year	Index (Units)
1980	38.613
1981	41.918
1982	44.422
1983	45.413
1984	46.652
1985	47.895
1986	47.881
1987	48.330
1988	48.441
1989	50.928
1990	53.067
1991	55.296
1992	56.865
1993	57.883
1994	58.709
1995	60.471
1996	61.709
1997	67.063
1998	69.533
1999	71.863
2000	73.380
2001	74.948
2002	76.506
2003	78.241
2004	80.001
2005	82.700
2006	89.719
2007	93.740
2008	98.708
2009	100.739
2010	101.597
2011	107.525
2012	108.403
2013	109.603
2014	109.874
2015	107.345
2016	106.607
2017	107.348
2018	106.236
2019	105.885
2020	104.638
2021	105.900
2022	108.726
2023	112.652
2024	115.423
2025	117.988
2026	120.400
2027	122.860
2028	125.371
2029	127.933