Year	Index (Units)
1980	0.141
1981	0.177
1982	0.187
1983	0.217
1984	0.254
1985	0.263
1986	0.295
1987	0.359
1988	0.430
1989	0.510
1990	0.637
1991	0.807
1992	1.047
1993	1.539
1994	2.035
1995	2.861
1996	3.709
1997	4.265
1998	4.651
1999	6.119
2000	7.711
2001	8.783
2002	11.434
2003	13.083
2004	15.746
2005	19.085
2006	22.076
2007	27.274
2008	33.160
2009	35.151
2010	40.741
2011	51.086
2012	60.769
2013	83.117
2014	91.228
2015	91.408
2016	100.000
2017	113.035
2018	148.801
2019	194.237
2020	280.216
2021	438.033
2022	659.613
2023	926.006
2024	1253.561
2025	1648.610
2026	2091.157
2027	2609.759
2028	3257.453
2029	4066.416