Year	Index (Units)
1980	9.388
1981	10.271
1982	11.198
1983	12.118
1984	12.691
1985	13.117
1986	13.688
1987	14.029
1988	14.659
1989	16.103
1990	19.858
1991	26.600
1992	28.925
1993	32.042
1994	39.017
1995	50.500
1996	62.542
1997	75.175
1998	85.450
1999	95.417
2000	105.958
2001	116.200
2002	125.150
2003	134.750
2004	145.683
2005	158.517
2006	167.358
2007	178.967
2008	199.375
2009	210.333
2010	220.217
2011	235.108
2012	247.325
2013	260.092
2014	276.033
2015	284.750
2016	292.508
2017	304.017
2018	317.233
2019	331.083
2020	342.567
2021	357.917
2022	390.450
2023	416.467
2024	434.750
2025	452.779
2026	470.890
2027	489.726
2028	509.315
2029	529.687