Year	Index (Units)
1980	5.935
1981	5.809
1982	5.814
1983	5.809
1984	5.623
1985	5.830
1986	5.694
1987	5.695
1988	5.693
1989	5.695
1990	5.695
1991	7.717
1992	26.987
1993	57.977
1994	79.443
1995	87.259
1996	100.000
1997	111.245
1998	118.733
1999	121.229
2000	128.076
2001	132.957
2002	137.806
2003	144.970
2004	149.540
2005	154.485
2006	158.314
2007	165.258
2008	172.062
2009	176.223
2010	184.141
2011	188.404
2012	190.368
2013	190.917
2014	193.876
2015	194.969
2016	193.736
2017	196.547
2018	199.442
2019	201.949
2020	203.356
2021	210.381
2022	231.164
2023	241.184
2024	249.343
2025	256.891
2026	264.500
2027	272.345
2028	280.409
2029	288.850