Year	Index (Units)
1980	0.008
1981	0.009
1982	0.010
1983	0.011
1984	0.013
1985	0.019
1986	0.035
1987	0.051
1988	0.073
1989	0.136
1990	0.282
1991	0.547
1992	1.398
1993	3.640
1994	6.346
1995	8.288
1996	10.306
1997	12.924
1998	15.109
1999	17.817
2000	23.628
2001	29.614
2002	35.356
2003	41.582
2004	49.780
2005	58.069
2006	66.513
2007	75.140
2008	83.135
2009	87.757
2010	100.000
2011	111.112
2012	118.881
2013	130.449
2014	137.540
2015	146.701
2016	166.582
2017	183.400
2018	196.992
2019	212.030
2020	241.531
2021	302.258
2022	320.701
2023	353.358
2024	390.886
2025	420.753
2026	448.621
2027	478.857
2028	510.589
2029	543.515