Year	Index (Units)
1980	1.011
1981	1.304
1982	1.556
1983	1.730
1984	2.216
1985	2.386
1986	2.544
1987	3.423
1988	4.666
1989	9.532
1990	16.710
1991	29.911
1992	33.650
1993	35.938
1994	41.723
1995	45.105
1996	47.128
1997	49.085
1998	51.426
1999	55.860
2000	59.136
2001	60.024
2002	63.679
2003	66.872
2004	70.521
2005	76.360
2006	79.539
2007	90.701
2008	96.479
2009	100.000
2010	104.430
2011	107.880
2012	111.630
2013	112.620
2014	113.940
2015	111.873
2016	113.500
2017	115.214
2018	117.100
2019	119.514
2020	120.647
2021	127.490
2022	136.720
2023	139.476
2024	144.436
2025	152.430
2026	160.777
2027	169.610
2028	178.999
2029	189.095