Year	Index (Units)
1980	5.001
1981	6.751
1982	8.770
1983	11.424
1984	14.396
1985	17.136
1986	28.224
1987	38.636
1988	49.180
1989	63.076
1990	79.283
1991	94.888
1992	110.600
1993	118.492
1994	123.492
1995	130.350
1996	134.242
1997	136.842
1998	143.825
1999	150.375
2000	160.550
2001	169.183
2002	174.192
2003	193.416
2004	227.192
2005	298.435
2006	401.999
2007	493.898
2008	584.611
2009	611.979
2010	706.627
2011	857.500
2012	988.071
2013	1105.528
2014	1212.899
2015	1311.758
2016	1418.981
2017	1545.476
2018	1697.334
2019	1858.083
2020	2055.083
2021	2313.952
2022	2556.888
2023	2756.325
2024	3060.451
2025	3372.019
2026	3697.934
2027	4037.204
2028	4390.038
2029	4767.582