Year	Index (Units)
1980	160.147
1981	169.046
1982	170.043
1983	155.671
1984	152.780
1985	128.320
1986	142.006
1987	160.161
1988	158.468
1989	152.372
1990	154.421
1991	134.125
1992	130.104
1993	130.594
1994	126.988
1995	146.324
1996	155.112
1997	153.614
1998	110.566
1999	95.716
2000	100.000
2001	62.802
2002	41.170
2003	37.644
2004	80.396
2005	55.053
2006	73.207
2007	19.964
2008	51.300
2009	54.489
2010	56.148
2011	58.097
2012	60.258
2013	61.241
2014	61.111
2015	59.638
2016	58.709
2017	59.242
2018	65.526
2019	232.807
2020	1530.031
2021	3037.819
2022	8912.927
2023	68394.363
2024	452073.574
2025	2959514.607
2026	18098493.820
2027	105060394.114
2028	578776004.258
2029	2893880021.288