Year	Index (Units)
1980	29.799
1981	33.407
1982	36.273
1983	39.504
1984	42.672
1985	45.816
1986	47.756
1987	49.772
1988	52.658
1989	56.047
1990	61.915
1991	67.359
1992	68.287
1993	71.489
1994	73.569
1995	75.383
1996	76.152
1997	77.536
1998	78.318
1999	78.765
2000	79.785
2001	81.924
2002	83.510
2003	85.446
2004	86.317
2005	87.038
2006	88.343
2007	89.827
2008	92.834
2009	94.633
2010	96.431
2011	97.743
2012	98.659
2013	99.095
2014	99.302
2015	100.000
2016	101.140
2017	103.029
2018	105.126
2019	106.935
2020	107.638
2021	110.491
2022	119.391
2023	126.447
2024	129.702
2025	132.280
2026	134.926
2027	137.624
2028	140.377
2029	143.184