Year	Index (Units)
1984	71.789
1985	72.580
1986	74.360
1987	75.296
1988	76.271
1989	76.684
1990	78.578
1991	80.741
1992	83.083
1993	84.211
1994	88.039
1995	92.257
1996	93.273
1997	94.601
1998	93.897
1999	94.233
2000	95.460
2001	92.491
2002	92.257
2003	94.050
2004	94.891
2005	95.939
2006	95.633
2007	97.487
2008	99.322
2009	99.847
2010	100.032
2011	100.196
2012	100.234
2013	100.391
2014	101.626
2015	100.211
2016	99.582
2017	99.124
2018	99.118
2019	99.389
2020	101.376
2021	103.593
2022	107.000
2023	107.696
2024	109.096
2025	110.186
2026	111.288
2027	112.401
2028	113.525
2029	114.661