Year	Index (Units)
1980	27.832
1981	30.187
1982	31.907
1983	32.768
1984	33.142
1985	33.516
1986	34.152
1987	35.685
1988	37.406
1989	38.641
1990	39.804
1991	41.600
1992	42.797
1993	42.498
1994	43.097
1995	44.393
1996	47.486
1997	48.783
1998	50.180
1999	51.277
2000	52.075
2001	52.973
2002	53.100
2003	54.300
2004	58.000
2005	63.200
2006	70.600
2007	80.300
2008	92.400
2009	87.900
2010	85.800
2011	87.500
2012	89.100
2013	91.900
2014	95.800
2015	96.700
2016	99.300
2017	99.900
2018	100.000
2019	99.100
2020	96.600
2021	98.800
2022	103.700
2023	106.900
2024	109.658
2025	112.271
2026	114.766
2027	117.113
2028	119.476
2029	121.822