Year	Index (Units)
1980	0.008
1981	0.010
1982	0.012
1983	0.019
1984	0.031
1985	0.057
1986	0.098
1987	0.154
1988	0.261
1989	0.493
1990	1.129
1991	2.049
1992	3.256
1993	4.978
1994	7.172
1995	9.715
1996	12.078
1997	13.910
1998	15.110
1999	15.740
2000	16.540
2001	17.130
2002	21.580
2003	23.780
2004	25.580
2005	26.830
2006	28.540
2007	30.970
2008	33.820
2009	35.820
2010	38.300
2011	41.590
2012	44.700
2013	48.510
2014	52.520
2015	57.480
2016	62.130
2017	66.200
2018	71.470
2019	77.760
2020	85.070
2021	91.850
2022	99.465
2023	104.551
2024	110.511
2025	116.589
2026	122.768
2027	128.907
2028	134.965
2029	141.174