Year	Index (Units)
1980	1.374
1981	1.472
1982	1.623
1983	1.823
1984	1.897
1985	2.059
1986	2.176
1987	2.986
1988	3.434
1989	4.157
1990	5.082
1991	5.760
1992	7.183
1993	7.884
1994	8.430
1995	9.405
1996	10.084
1997	10.674
1998	11.091
1999	11.187
2000	11.737
2001	11.958
2002	12.241
2003	13.071
2004	14.596
2005	15.503
2006	16.644
2007	18.740
2008	21.027
2009	23.379
2010	25.742
2011	28.745
2012	34.505
2013	36.978
2014	41.126
2015	45.290
2016	48.245
2017	59.109
2018	71.628
2019	81.386
2020	86.394
2021	90.614
2022	100.000
2023	124.826
2024	165.409
2025	211.403
2026	238.433
2027	263.319
2028	283.540
2029	300.116