Year	Index (Units)
1980	3.379
1981	5.045
1982	8.065
1983	14.247
1984	16.928
1985	23.011
1986	26.119
1987	32.502
1988	39.200
1989	49.110
1990	52.660
1991	56.620
1992	57.480
1993	60.210
1994	60.520
1995	61.730
1996	63.000
1997	64.290
1998	65.110
1999	68.710
2000	71.560
2001	77.750
2002	79.270
2003	81.460
2004	84.650
2005	88.150
2006	94.290
2007	99.820
2008	117.900
2009	126.700
2010	129.900
2011	136.700
2012	142.500
2013	148.400
2014	149.600
2015	152.600
2016	155.500
2017	158.400
2018	164.300
2019	167.600
2020	173.600
2021	182.500
2022	200.000
2023	215.500
2024	225.844
2025	232.084
2026	237.886
2027	243.833
2028	249.929
2029	256.177