Year	Index (Units)
1980	18.670
1981	22.644
1982	26.616
1983	30.634
1984	33.930
1985	37.043
1986	39.817
1987	42.210
1988	45.017
1989	47.807
1990	50.993
1991	54.915
1992	57.314
1993	59.541
1994	61.650
1995	65.865
1996	68.881
1997	70.650
1998	72.347
1999	73.459
2000	74.776
2001	77.044
2002	79.567
2003	82.071
2004	84.263
2005	85.957
2006	87.783
2007	89.960
2008	92.119
2009	93.666
2010	94.075
2011	95.587
2012	97.066
2013	98.180
2014	99.077
2015	100.000
2016	101.134
2017	101.869
2018	102.957
2019	103.923
2020	105.564
2021	106.893
2022	110.745
2023	116.585
2024	119.842
2025	122.742
2026	125.197
2027	127.701
2028	130.255
2029	132.860