Year	Index (Units)
1980	86.750
1981	94.183
1982	97.967
1983	101.817
1984	105.783
1985	109.283
1986	111.133
1987	115.783
1988	120.983
1989	126.950
1990	134.267
1991	138.200
1992	142.550
1993	146.333
1994	150.317
1995	154.383
1996	159.150
1997	161.833
1998	164.433
1999	169.267
2000	175.067
2001	177.783
2002	182.433
2003	185.917
2004	191.883
2005	198.950
2006	203.325
2007	211.630
2008	213.113
2009	217.202
2010	220.871
2011	227.687
2012	231.834
2013	234.892
2014	236.122
2015	237.763
2016	242.987
2017	248.280
2018	253.048
2019	258.328
2020	262.360
2021	281.753
2022	299.822
2023	309.419
2024	316.814
2025	323.036
2026	329.824
2027	337.646
2028	344.853
2029	352.274