Year	Index (Units)
1980	2.823
1981	3.168
1982	3.561
1983	4.186
1984	4.639
1985	5.253
1986	6.207
1987	6.929
1988	7.732
1989	8.879
1990	9.897
1991	11.665
1992	13.653
1993	15.533
1994	16.659
1995	18.319
1996	19.978
1997	21.686
1998	23.373
1999	25.393
2000	26.950
2001	28.815
2002	32.434
2003	34.758
2004	36.505
2005	37.759
2006	40.053
2007	43.262
2008	47.897
2009	51.432
2010	53.230
2011	55.911
2012	59.294
2013	62.179
2014	65.518
2015	67.627
2016	72.088
2017	75.294
2018	78.872
2019	82.963
2020	87.093
2021	92.360
2022	100.000
2023	106.343
2024	113.132
2025	119.188
2026	125.655
2027	132.067
2028	138.672
2029	145.606