Year	Index (Units)
1980	3.398
1981	3.573
1982	3.777
1983	3.964
1984	4.215
1985	4.465
1986	4.632
1987	5.014
1988	5.892
1989	6.996
1990	8.792
1991	11.932
1992	14.499
1993	17.584
1994	21.011
1995	26.355
1996	32.135
1997	38.645
1998	43.966
1999	47.536
2000	52.092
2001	57.846
2002	62.526
2003	65.924
2004	69.280
2005	71.100
2006	73.700
2007	77.712
2008	81.447
2009	84.867
2010	87.016
2011	88.694
2012	91.260
2013	93.834
2014	97.299
2015	100.000
2016	101.320
2017	105.403
2018	110.513
2019	115.801
2020	123.214
2021	131.155
2022	150.159
2023	172.103
2024	177.477
2025	185.422
2026	191.126
2027	196.806
2028	202.542
2029	208.353