Year	Index (Units)
1980	32.448
1981	34.947
1982	36.864
1983	39.190
1984	41.323
1985	43.179
1986	46.031
1987	41.331
1988	41.800
1989	44.145
1990	45.889
1991	48.678
1992	50.731
1993	53.830
1994	55.983
1995	58.279
1996	57.307
1997	58.771
1998	60.927
1999	61.996
2000	62.230
2001	65.964
2002	68.059
2003	69.170
2004	68.658
2005	68.417
2006	67.735
2007	70.159
2008	79.746
2009	87.574
2010	84.159
2011	85.419
2012	82.818
2013	81.585
2014	83.302
2015	83.778
2016	85.385
2017	85.688
2018	86.171
2019	84.609
2020	86.769
2021	88.551
2022	93.285
2023	101.940
2024	106.495
2025	109.690
2026	112.432
2027	114.681
2028	116.860
2029	118.963