Year	Index (Units)
1980	6.245
1981	7.143
1982	9.845
1983	9.652
1984	8.887
1985	8.125
1986	8.412
1987	8.002
1988	7.728
1989	7.950
1990	8.409
1991	27.242
1992	29.625
1993	33.598
1994	35.414
1995	36.776
1996	38.365
1997	39.728
1998	41.884
1999	43.360
2000	45.743
2001	47.219
2002	49.262
2003	50.738
2004	53.575
2005	57.435
2006	62.656
2007	67.423
2008	77.185
2009	78.207
2010	88.649
2011	93.303
2012	100.000
2013	105.675
2014	114.529
2015	116.345
2016	119.977
2017	121.566
2018	122.815
2019	123.269
2020	124.291
2021	128.604
2022	139.841
2023	140.863
2024	144.015
2025	147.050
2026	149.964
2027	152.854
2028	155.650
2029	158.466