Year	Index (Units)
1980	55.862
1981	59.145
1982	61.826
1983	63.786
1984	64.289
1985	63.347
1986	62.553
1987	62.886
1988	66.301
1989	69.059
1990	72.303
1991	75.510
1992	76.558
1993	79.204
1994	81.946
1995	84.549
1996	85.823
1997	86.754
1998	85.601
1999	82.538
2000	85.727
2001	84.172
2002	83.417
2003	81.916
2004	85.160
2005	86.778
2006	88.378
2007	93.608
2008	92.314
2009	95.041
2010	96.094
2011	97.219
2012	97.701
2013	97.280
2014	97.020
2015	100.000
2016	100.490
2017	103.398
2018	107.124
2019	106.905
2020	104.298
2021	115.003
2022	130.504
2023	126.499
2024	130.194
2025	133.447
2026	136.087
2027	138.778
2028	141.524
2029	144.322