Year	Index (Units)
1980	49.340
1981	54.700
1982	56.315
1983	57.087
1984	57.069
1985	56.977
1986	57.375
1987	57.668
1988	58.411
1989	60.990
1990	63.508
1991	65.809
1992	68.746
1993	70.770
1994	73.670
1995	76.371
1996	78.721
1997	79.433
1998	80.771
1999	80.913
2000	81.923
2001	81.920
2002	81.759
2003	81.529
2004	82.840
2005	84.753
2006	85.261
2007	86.793
2008	89.857
2009	89.071
2010	89.931
2011	91.209
2012	92.974
2013	93.711
2014	94.830
2015	94.540
2016	95.857
2017	96.453
2018	97.755
2019	98.302
2020	98.068
2021	100.000
2022	102.947
2023	105.513
2024	107.497
2025	109.169
2026	110.818
2027	112.499
2028	114.284
2029	115.989