Year	Index (Units)
1980	0.018
1981	0.018
1982	0.018
1983	0.017
1984	0.016
1985	0.016
1986	0.016
1987	0.016
1988	0.016
1989	0.016
1990	0.018
1991	0.053
1992	0.159
1993	0.519
1994	1.241
1995	1.678
1996	2.438
1997	6.026
1998	9.356
1999	13.818
2000	19.697
2001	27.173
2002	33.345
2003	41.066
2004	47.413
2005	53.106
2006	58.738
2007	68.029
2008	78.924
2009	82.149
2010	87.005
2011	90.465
2012	93.905
2013	95.210
2014	96.838
2015	100.000
2016	102.621
2017	107.395
2018	114.067
2019	121.829
2020	126.836
2021	133.743
2022	151.599
2023	166.665
2024	175.676
2025	180.505
2026	185.658
2027	191.234
2028	196.508
2029	201.643