Year	Index (Units)
1980	5.335
1981	6.488
1982	8.254
1983	9.955
1984	12.138
1985	14.446
1986	17.174
1987	19.794
1988	23.095
1989	26.443
1990	31.915
1991	38.230
1992	43.889
1993	50.221
1994	55.836
1995	61.304
1996	65.985
1997	70.309
1998	73.897
1999	76.574
2000	77.794
2001	80.497
2002	83.193
2003	86.066
2004	88.702
2005	90.689
2006	93.859
2007	97.071
2008	101.288
2009	103.891
2010	103.707
2011	104.701
2012	104.413
2013	102.278
2014	100.295
2015	100.000
2016	99.421
2017	99.705
2018	99.540
2019	99.766
2020	99.016
2021	100.487
2022	108.372
2023	113.270
2024	116.945
2025	119.940
2026	122.406
2027	124.878
2028	127.399
2029	129.875