Year	Index (Units)
1980	3.108
1981	3.497
1982	4.166
1983	4.598
1984	5.116
1985	6.130
1986	6.908
1987	7.534
1988	8.721
1989	9.779
1990	11.505
1991	13.405
1992	15.456
1993	16.405
1994	18.154
1995	19.838
1996	21.586
1997	23.162
1998	25.234
1999	26.832
2000	28.710
2001	31.841
2002	34.298
2003	36.069
2004	37.401
2005	39.309
2006	41.640
2007	46.075
2008	50.931
2009	52.738
2010	54.643
2011	58.567
2012	61.477
2013	64.861
2014	66.166
2015	71.116
2016	74.276
2017	77.867
2018	81.943
2019	85.208
2020	90.707
2021	97.242
2022	103.895
2023	110.786
2024	116.990
2025	123.132
2026	129.597
2027	136.076
2028	142.963
2029	150.198