Year	Index (Units)
1980	40.813
1981	50.463
1982	50.275
1983	53.570
1984	53.852
1985	51.169
1986	49.004
1987	49.098
1988	46.838
1989	47.591
1990	46.367
1991	43.166
1992	42.037
1993	43.496
1994	61.149
1995	65.823
1996	68.214
1997	71.020
1998	73.405
1999	72.358
2000	75.508
2001	77.811
2002	78.280
2003	77.096
2004	79.942
2005	83.271
2006	83.545
2007	87.510
2008	99.406
2009	95.132
2010	97.679
2011	99.059
2012	99.760
2013	100.856
2014	100.272
2015	102.408
2016	100.200
2017	101.950
2018	103.600
2019	101.200
2020	104.300
2021	109.400
2022	112.800
2023	120.900
2024	125.256
2025	131.677
2026	134.969
2027	137.668
2028	140.422
2029	143.230