Year	Index (Units)
1980	1.106
1981	1.443
1982	1.903
1983	2.273
1984	2.495
1985	2.786
1986	3.084
1987	3.985
1988	4.675
1989	5.170
1990	5.886
1991	6.576
1992	7.633
1993	8.263
1994	13.322
1995	18.292
1996	19.807
1997	20.766
1998	22.096
1999	24.328
2000	26.728
2001	28.247
2002	32.066
2003	31.813
2004	40.507
2005	45.141
2006	50.029
2007	54.139
2008	59.629
2009	64.396
2010	70.961
2011	75.859
2012	80.242
2013	85.264
2014	90.402
2015	97.239
2016	103.026
2017	113.945
2018	121.856
2019	126.700
2020	132.488
2021	140.647
2022	155.868
2023	167.482
2024	180.385
2025	193.792
2026	207.413
2027	221.087
2028	234.680
2029	248.759