Year	Index (Units)
1980	41.553
1981	46.217
1982	49.378
1983	51.845
1984	53.599
1985	55.825
1986	56.269
1987	57.406
1988	60.460
1989	60.460
1990	61.698
1991	63.088
1992	64.600
1993	65.552
1994	67.236
1995	69.179
1996	73.624
1997	74.379
1998	73.748
1999	72.858
2000	73.305
2001	74.148
2002	75.775
2003	77.762
2004	80.147
2005	83.073
2006	86.596
2007	88.603
2008	94.269
2009	93.228
2010	94.084
2011	95.642
2012	96.834
2013	97.328
2014	98.497
2015	97.649
2016	98.294
2017	99.425
2018	99.693
2019	99.878
2020	100.000
2021	103.239
2022	109.716
2023	114.533
2024	118.041
2025	120.702
2026	122.219
2027	123.756
2028	125.313
2029	126.888