Year	Index (Units)
1980	31.800
1981	35.622
1982	37.532
1983	39.534
1984	41.354
1985	43.674
1986	45.312
1987	46.995
1988	50.608
1989	53.393
1990	57.460
1991	61.599
1992	63.170
1993	64.692
1994	66.015
1995	67.964
1996	69.519
1997	70.708
1998	71.808
1999	72.615
2000	73.200
2001	73.975
2002	75.204
2003	76.159
2004	77.433
2005	78.918
2006	81.274
2007	82.967
2008	85.498
2009	87.972
2010	91.230
2011	95.059
2012	97.604
2013	99.589
2014	100.134
2015	100.336
2016	101.900
2017	104.929
2018	107.137
2019	108.532
2020	109.171
2021	115.051
2022	127.164
2023	132.242
2024	135.158
2025	137.861
2026	140.618
2027	143.431
2028	146.299
2029	149.225