Year	Index (Units)
1980	12.592
1981	14.638
1982	17.708
1983	20.866
1984	24.138
1985	26.231
1986	26.497
1987	27.613
1988	29.360
1989	30.969
1990	43.389
1991	44.720
1992	48.309
1993	50.845
1994	37.553
1995	52.671
1996	52.151
1997	58.394
1998	63.513
1999	63.795
2000	65.119
2001	67.311
2002	68.309
2003	70.049
2004	75.003
2005	78.000
2006	82.113
2007	88.263
2008	96.312
2009	97.920
2010	93.722
2011	92.869
2012	96.608
2013	98.875
2014	99.718
2015	103.672
2016	105.999
2017	106.322
2018	107.489
2019	109.100
2020	110.433
2021	109.990
2022	116.194
2023	126.457
2024	132.226
2025	137.297
2026	141.691
2027	145.941
2028	150.320
2029	154.829