Year	Index (Units)
1983	0.002
1984	0.023
1985	2.774
1986	10.357
1987	11.867
1988	13.766
1989	15.855
1990	18.569
1991	22.551
1992	25.473
1993	27.645
1994	29.822
1995	32.861
1996	36.946
1997	38.685
1998	41.654
1999	42.554
2000	44.512
2001	45.223
2002	45.640
2003	47.163
2004	49.256
2005	51.916
2006	54.148
2007	57.752
2008	65.842
2009	68.044
2010	69.747
2011	76.640
2012	80.102
2013	84.697
2014	89.580
2015	93.218
2016	96.596
2017	99.323
2018	101.579
2019	103.447
2020	104.422
2021	105.191
2022	107.028
2023	109.786
2024	114.709
2025	119.488
2026	124.110
2027	128.835
2028	133.734
2029	138.816