Year	Index (Units)
1980	3.630
1981	4.344
1982	4.776
1983	6.078
1984	7.285
1985	9.522
1986	11.377
1987	13.639
1988	15.641
1989	18.305
1990	23.070
1991	28.103
1992	32.446
1993	36.581
1994	40.773
1995	44.128
1996	47.375
1997	50.277
1998	52.844
1999	54.605
2000	56.701
2001	58.723
2002	60.183
2003	61.874
2004	62.525
2005	64.434
2006	66.626
2007	69.567
2008	75.635
2009	76.769
2010	77.849
2011	80.446
2012	82.859
2013	84.341
2014	88.317
2015	92.158
2016	95.651
2017	97.739
2018	100.004
2019	102.253
2020	105.365
2021	110.132
2022	122.957
2023	132.281
2024	136.487
2025	140.582
2026	144.800
2027	149.144
2028	153.618
2029	158.226