Year	Index (Units)
1980	32.550
1981	36.294
1982	39.923
1983	43.037
1984	48.072
1985	45.236
1986	43.336
1987	44.073
1988	41.737
1989	42.321
1990	41.644
1991	40.607
1992	38.509
1993	37.034
1994	45.280
1995	47.202
1996	50.482
1997	54.016
1998	57.328
1999	57.535
2000	59.364
2001	62.360
2002	63.967
2003	63.813
2004	64.053
2005	69.574
2006	70.626
2007	75.604
2008	83.285
2009	86.748
2010	89.784
2011	93.401
2012	98.345
2013	98.019
2014	97.480
2015	99.994
2016	101.347
2017	102.171
2018	104.593
2019	104.819
2020	105.815
2021	109.101
2022	113.342
2023	116.516
2024	120.486
2025	123.756
2026	126.598
2027	129.131
2028	131.718
2029	134.347