Year	Index (Units)
1980	0.002
1981	0.002
1982	0.005
1983	0.007
1984	0.012
1985	0.024
1986	0.138
1987	0.576
1988	2.348
1989	5.487
1990	7.800
1991	13.479
1992	17.868
1993	20.978
1994	24.536
1995	28.717
1996	31.214
1997	33.274
1998	36.214
1999	38.291
2000	39.596
2001	40.368
2002	41.965
2003	44.763
2004	52.759
2005	57.533
2006	62.463
2007	68.479
2008	84.005
2009	89.227
2010	100.000
2011	121.414
2012	132.435
2013	137.784
2014	142.879
2015	140.427
2016	142.982
2017	149.220
2018	154.631
2019	158.379
2020	160.700
2021	165.332
2022	172.030
2023	175.309
2024	182.152
2025	188.551
2026	194.154
2027	199.494
2028	204.666
2029	209.671