Year	Index (Units)
1980	0.002
1981	0.003
1982	0.004
1983	0.005
1984	0.008
1985	0.012
1986	0.017
1987	0.023
1988	0.038
1989	0.067
1990	0.106
1991	0.168
1992	0.275
1993	0.462
1994	0.953
1995	1.785
1996	3.174
1997	5.762
1998	10.122
1999	15.617
2000	23.325
2001	35.683
2002	49.090
2003	60.523
2004	68.045
2005	72.866
2006	79.698
2007	84.639
2008	94.835
2009	100.000
2010	107.009
2011	115.785
2012	124.379
2013	132.190
2014	141.959
2015	153.095
2016	165.543
2017	183.723
2018	214.060
2019	243.745
2020	279.794
2021	360.858
2022	707.413
2023	1184.729
2024	1812.758
2025	2466.233
2026	2981.631
2027	3491.669
2028	4070.786
2029	4738.227
