Year	Index (Units)
1980	50.317
1981	54.437
1982	56.570
1983	57.157
1984	58.645
1985	58.933
1986	58.120
1987	58.401
1988	59.290
1989	60.650
1990	62.743
1991	64.901
1992	66.357
1993	67.878
1994	69.978
1995	71.185
1996	72.167
1997	73.627
1998	73.428
1999	73.445
2000	74.435
2001	75.190
2002	74.896
2003	75.261
2004	76.518
2005	76.877
2006	77.617
2007	79.251
2008	84.504
2009	85.008
2010	87.408
2011	91.995
2012	96.205
2013	98.474
2014	99.483
2015	98.963
2016	98.436
2017	99.004
2018	99.438
2019	100.000
2020	99.818
2021	102.119
2022	108.370
2023	113.595
2024	116.978
2025	119.903
2026	122.274
2027	124.700
2028	127.175
2029	129.672