Year	Index (Units)
1980	7.495
1981	8.365
1982	10.094
1983	11.244
1984	12.400
1985	14.013
1986	14.368
1987	15.610
1988	17.524
1989	19.940
1990	23.486
1991	28.203
1992	35.912
1993	52.424
1994	67.530
1995	68.579
1996	73.252
1997	81.546
1998	85.962
1999	90.930
2000	100.000
2001	105.732
2002	107.810
2003	118.381
2004	132.344
2005	145.462
2006	154.237
2007	160.824
2008	185.131
2009	204.638
2010	212.996
2011	242.862
2012	265.638
2013	280.826
2014	300.141
2015	319.897
2016	340.107
2017	367.265
2018	384.489
2019	404.635
2020	426.040
2021	452.068
2022	486.644
2023	523.994
2024	558.584
2025	589.240
2026	620.485
2027	650.585
2028	683.114
2029	717.270