Year	Index (Units)
1980	19.924
1981	20.892
1982	22.537
1983	23.214
1984	26.729
1985	30.685
1986	32.668
1987	35.563
1988	38.692
1989	42.189
1990	45.976
1991	51.230
1992	58.758
1993	65.919
1994	71.520
1995	78.287
1996	85.693
1997	91.661
1998	99.894
1999	107.957
2000	100.053
2001	91.210
2002	93.706
2003	96.491
2004	100.000
2005	105.400
2006	108.667
2007	113.340
2008	120.141
2009	128.791
2010	136.132
2011	149.200
2012	163.374
2013	184.450
2014	199.321
2015	208.675
2016	216.111
2017	226.904
2018	232.661
2019	239.137
2020	249.930
2021	268.399
2022	285.909
2023	296.942
2024	311.927
2025	324.797
2026	337.937
2027	351.320
2028	365.232
2029	379.695