Year	Index (Units)
1980	4.321
1981	4.517
1982	4.748
1983	5.678
1984	6.191
1985	6.440
1986	6.560
1987	7.421
1988	8.015
1989	8.816
1990	9.497
1991	10.315
1992	10.973
1993	11.857
1994	12.779
1995	14.042
1996	15.260
1997	17.178
1998	30.109
1999	34.372
2000	37.247
2001	42.571
2002	45.081
2003	47.555
2004	51.621
2005	59.020
2006	67.334
2007	74.915
2008	87.863
2009	93.162
2010	100.000
2011	107.466
2012	111.500
2013	117.037
2014	123.408
2015	128.320
2016	131.449
2017	137.092
2018	142.327
2019	144.602
2020	144.021
2021	152.668
2022	167.273
2023	169.837
2024	174.180
2025	178.686
2026	183.212
2027	187.825
2028	192.545
2029	197.381