Year	Index (Units)
1980	66.700
1981	72.000
1982	77.100
1983	78.100
1984	80.000
1985	82.800
1986	87.300
1987	92.100
1988	96.700
1989	99.400
1990	100.000
1991	103.400
1992	110.000
1993	115.800
1994	122.400
1995	127.700
1996	131.500
1997	135.400
1998	138.100
1999	141.000
2000	142.900
2001	146.901
2002	151.188
2003	155.904
2004	163.763
2005	173.909
2006	190.057
2007	211.206
2008	237.097
2009	225.895
2010	227.880
2011	229.875
2012	231.398
2013	233.953
2014	239.441
2015	249.181
2016	253.214
2017	258.192
2018	266.120
2019	260.972
2020	255.554
2021	255.265
2022	267.588
2023	271.931
2024	277.642
2025	283.195
2026	288.858
2027	294.636
2028	300.528
2029	306.539