Year	Index (Units)
1980	65.872
1981	68.237
1982	69.510
1983	69.910
1984	69.437
1985	67.833
1986	65.716
1987	64.143
1988	63.918
1989	64.693
1990	64.010
1991	66.493
1992	65.810
1993	66.627
1994	67.535
1995	71.003
1996	71.195
1997	71.020
1998	70.720
1999	69.218
2000	68.502
2001	67.735
2002	67.810
2003	68.135
2004	68.335
2005	68.727
2006	70.035
2007	73.520
2008	78.020
2009	81.345
2010	84.353
2011	87.512
2012	90.020
2013	93.198
2014	95.282
2015	96.431
2016	98.426
2017	97.601
2018	100.000
2019	97.907
2020	101.280
2021	104.383
2022	106.965
2023	109.454
2024	111.924
2025	114.200
2026	116.489
2027	118.819
2028	121.195
2029	123.614