Year	Index (Units)
1980	8.671
1981	9.072
1982	9.634
1983	10.340
1984	11.192
1985	12.089
1986	12.904
1987	13.361
1988	14.282
1989	15.655
1990	16.660
1991	17.860
1992	19.513
1993	21.212
1994	23.786
1995	26.239
1996	28.419
1997	31.437
1998	34.960
1999	37.996
2000	39.601
2001	41.019
2002	43.107
2003	44.967
2004	46.756
2005	49.323
2006	52.533
2007	55.522
2008	58.322
2009	61.249
2010	64.533
2011	69.486
2012	75.749
2013	81.476
2014	86.541
2015	90.488
2016	93.901
2017	97.903
2018	100.585
2019	102.767
2020	106.903
2021	114.088
2022	121.697
2023	127.173
2024	133.149
2025	139.331
2026	145.411
2027	151.495
2028	157.663
2029	163.995