Year	Index (Units)
1980	0.500
1981	0.705
1982	1.299
1983	1.675
1984	1.955
1985	2.356
1986	2.781
1987	3.064
1988	3.641
1989	4.196
1990	4.972
1991	8.154
1992	9.763
1993	10.782
1994	12.471
1995	15.120
1996	17.399
1997	19.953
1998	22.335
1999	24.799
2000	27.127
2001	29.764
2002	32.677
2003	36.157
2004	40.984
2005	46.317
2006	52.331
2007	57.835
2008	64.442
2009	70.693
2010	75.380
2011	78.842
2012	82.574
2013	86.364
2014	91.725
2015	95.353
2016	97.221
2017	100.000
2018	102.192
2019	104.816
2020	105.625
2021	108.133
2022	114.924
2023	114.823
2024	116.259
2025	119.962
2026	123.789
2027	127.744
2028	131.825
2029	136.036