Year	Index (Units)
1980	0.090
1981	0.098
1982	0.110
1983	0.131
1984	0.146
1985	0.162
1986	0.185
1987	0.251
1988	0.317
1989	0.314
1990	0.387
1991	0.415
1992	0.565
1993	0.668
1994	1.109
1995	1.940
1996	2.071
1997	2.384
1998	3.652
1999	4.682
2000	6.342
2001	7.745
2002	8.634
2003	9.483
2004	10.781
2005	12.567
2006	13.841
2007	14.882
2008	16.362
2009	17.602
2010	18.706
2011	20.539
2012	27.640
2013	34.136
2014	42.380
2015	52.914
2016	63.480
2017	67.963
2018	74.686
2019	83.295
2020	89.663
2021	100.000
2022	125.430
2023	175.619
2024	207.787
2025	228.217
2026	245.571
2027	261.597
2028	278.585
2029	296.693