Year	Index (Units)
1980	51.536
1981	53.221
1982	55.487
1983	56.649
1984	57.475
1985	58.007
1986	58.221
1987	58.475
1988	58.973
1989	59.142
1990	59.435
1991	59.903
1992	60.891
1993	61.472
1994	62.285
1995	62.808
1996	64.261
1997	63.970
1998	64.842
1999	65.829
2000	66.294
2001	66.294
2002	67.456
2003	67.321
2004	68.402
2005	70.697
2006	72.251
2007	76.842
2008	82.041
2009	83.595
2010	87.713
2011	93.250
2012	97.572
2013	101.218
2014	102.200
2015	102.500
2016	104.000
2017	104.500
2018	104.666
2019	104.599
2020	102.951
2021	105.653
2022	107.845
2023	109.917
2024	112.382
2025	114.629
2026	116.922
2027	119.260
2028	121.646
2029	124.078