Year	Index (Units)
1980	0.176
1981	0.178
1982	0.182
1983	0.184
1984	0.178
1985	0.175
1986	0.159
1987	0.160
1988	0.162
1989	0.162
1990	0.162
1991	0.322
1992	0.881
1993	3.691
1994	6.065
1995	9.721
1996	10.771
1997	13.106
1998	12.852
1999	14.251
2000	15.961
2001	17.345
2002	18.356
2003	20.168
2004	23.793
2005	28.775
2006	35.230
2007	39.866
2008	48.902
2009	50.202
2010	69.254
2011	79.724
2012	89.916
2013	92.531
2014	99.424
2015	100.000
2016	102.993
2017	114.117
2018	123.201
2019	135.487
2020	140.509
2021	160.771
2022	189.251
2023	226.154
2024	245.540
2025	266.768
2026	292.216
2027	314.607
2028	336.768
2029	359.486