Year	Index (Units)
1984	0.770
1985	2.980
1986	2.340
1987	3.620
1988	5.730
1989	7.320
1990	13.654
1991	21.894
1992	31.622
1993	43.538
1994	56.451
1995	68.644
1996	81.344
1997	92.081
1998	100.000
1999	109.801
2000	119.134
2001	123.423
2002	124.411
2003	126.526
2004	132.093
2005	133.017
2006	134.880
2007	140.275
2008	144.904
2009	149.976
2010	154.625
2011	161.738
2012	165.619
2013	166.779
2014	165.111
2015	164.285
2016	165.600
2017	169.077
2018	170.937
2019	176.749
2020	180.991
2021	196.556
2022	229.184
2023	243.394
2024	258.888
2025	268.892
2026	277.765
2027	284.710
2028	291.827
2029	299.123