Year	Index (Units)
1980	10.884
1981	13.067
1982	14.479
1983	16.154
1984	18.245
1985	21.978
1986	24.997
1987	28.341
1988	34.121
1989	36.696
1990	41.500
1991	45.208
1992	48.624
1993	54.471
1994	61.971
1995	69.586
1996	74.057
1997	79.941
1998	85.945
1999	90.983
2000	100.000
2001	107.489
2002	120.247
2003	128.996
2004	133.472
2005	140.005
2006	147.279
2007	159.173
2008	179.320
2009	192.676
2010	201.365
2011	213.663
2012	232.764
2013	245.847
2014	259.814
2015	272.678
2016	294.076
2017	312.372
2018	327.413
2019	335.919
2020	348.925
2021	361.901
2022	379.281
2023	398.051
2024	413.500
2025	426.129
2026	438.816
2027	451.860
2028	465.292
2029	479.123