Year	Index (Units)
1980	6.282
1981	7.033
1982	7.445
1983	7.925
1984	8.405
1985	8.873
1986	9.180
1987	9.611
1988	10.460
1989	11.285
1990	12.306
1991	13.860
1992	14.532
1993	15.960
1994	17.759
1995	20.072
1996	22.236
1997	24.862
1998	26.803
1999	28.341
2000	29.357
2001	30.652
2002	31.736
2003	32.721
2004	34.214
2005	37.388
2006	40.351
2007	43.486
2008	48.702
2009	58.231
2010	64.114
2011	72.873
2012	80.892
2013	86.847
2014	94.334
2015	98.602
2016	101.426
2017	105.633
2018	109.779
2019	117.177
2020	129.763
2021	141.314
2022	158.481
2023	204.728
2024	255.413
2025	287.732
2026	309.514
2027	329.629
2028	351.032
2029	373.825