Year	Index (Units)
1980	30.458
1981	35.164
1982	40.835
1983	43.874
1984	46.564
1985	53.725
1986	60.828
1987	70.416
1988	74.888
1989	79.168
1990	83.996
1991	86.182
1992	87.057
1993	88.178
1994	89.717
1995	93.086
1996	95.214
1997	96.344
1998	97.563
1999	97.451
2000	100.000
2001	102.626
2002	105.373
2003	107.221
2004	109.677
2005	113.008
2006	116.811
2007	119.586
2008	124.321
2009	126.951
2010	129.873
2011	135.104
2012	136.536
2013	138.085
2014	139.780
2015	140.190
2016	141.095
2017	143.707
2018	146.004
2019	148.368
2020	150.912
2021	156.860
2022	168.110
2023	177.748
2024	183.249
2025	187.871
2026	192.324
2027	196.392
2028	200.248
2029	204.335