Year	Index (Units)
1980	20.965
1981	25.442
1982	27.271
1983	28.204
1984	28.845
1985	29.555
1986	30.368
1987	31.293
1988	33.530
1989	35.441
1990	38.480
1991	42.071
1992	44.685
1993	46.831
1994	49.765
1995	51.995
1996	54.555
1997	56.977
1998	61.258
1999	61.756
2000	63.151
2001	65.719
2002	67.534
2003	69.908
2004	72.418
2005	74.413
2006	76.081
2007	78.010
2008	81.656
2009	83.906
2010	86.373
2011	89.850
2012	91.815
2013	93.010
2014	94.196
2015	94.861
2016	95.783
2017	97.645
2018	99.086
2019	99.466
2020	100.000
2021	102.498
2022	107.715
2023	111.585
2024	114.399
2025	116.687
2026	119.021
2027	121.402
2028	123.830
2029	126.306