Year	Index (Units)
1980	3.575
1981	4.010
1982	4.245
1983	4.591
1984	5.248
1985	5.448
1986	5.539
1987	5.933
1988	6.199
1989	6.922
1990	7.407
1991	8.073
1992	8.218
1993	9.012
1994	10.355
1995	12.345
1996	15.618
1997	20.469
1998	23.022
1999	23.832
2000	29.915
2001	32.269
2002	31.863
2003	35.232
2004	38.113
2005	43.164
2006	44.349
2007	48.079
2008	59.814
2009	66.128
2010	70.424
2011	77.173
2012	91.200
2013	98.439
2014	102.787
2015	108.496
2016	114.492
2017	133.494
2018	129.800
2019	128.879
2020	138.294
2021	149.791
2022	178.083
2023	226.086
2024	275.744
2025	330.796
2026	383.652
2027	421.837
2028	463.963
2029	510.454