Year	Index (Units)
1980	36.734
1981	39.700
1982	43.415
1983	47.179
1984	49.838
1985	51.878
1986	52.034
1987	51.982
1988	52.709
1989	54.502
1990	56.518
1991	58.270
1992	60.135
1993	62.300
1994	63.670
1995	64.880
1996	65.630
1997	66.530
1998	67.177
1999	67.863
2000	70.429
2001	72.123
2002	73.605
2003	75.466
2004	77.914
2005	80.844
2006	83.239
2007	85.449
2008	88.946
2009	88.953
2010	91.439
2011	94.848
2012	97.588
2013	99.246
2014	99.934
2015	99.993
2016	100.037
2017	102.149
2018	104.211
2019	105.931
2020	105.937
2021	109.611
2022	118.544
2023	122.017
2024	125.115
2025	128.987
2026	131.650
2027	134.303
2028	136.956
2029	139.777