Year	Index (Units)
1980	48.556
1981	54.730
1982	56.838
1983	62.807
1984	69.536
1985	75.848
1986	74.796
1987	63.624
1988	69.317
1989	69.208
1990	70.321
1991	71.381
1992	67.164
1993	66.783
1994	83.004
1995	92.669
1996	98.647
1997	97.983
1998	101.969
1999	100.783
2000	100.000
2001	105.184
2002	110.476
2003	109.040
2004	105.635
2005	112.386
2006	114.130
2007	115.743
2008	126.365
2009	129.368
2010	130.915
2011	134.785
2012	141.930
2013	141.107
2014	142.366
2015	144.405
2016	141.803
2017	145.189
2018	147.965
2019	143.482
2020	144.172
2021	149.663
2022	164.231
2023	167.602
2024	169.278
2025	172.663
2026	176.117
2027	179.639
2028	183.232
2029	186.896