Year	Index (Units)
1982	28.154
1983	29.221
1984	29.478
1985	29.919
1986	30.613
1987	31.026
1988	31.617
1989	32.769
1990	33.743
1991	34.427
1992	34.713
1993	35.041
1994	35.516
1995	35.239
1996	35.187
1997	35.981
1998	37.609
1999	39.978
2000	42.435
2001	43.715
2002	44.480
2003	46.084
2004	46.914
2005	46.185
2006	46.284
2007	54.035
2008	88.213
2009	85.974
2010	86.306
2011	91.063
2012	96.342
2013	99.636
2014	100.158
2015	103.330
2016	103.087
2017	106.692
2018	110.300
2019	112.166
2020	116.411
2021	125.553
2022	128.724
2023	125.240
2024	126.190
2025	130.065
2026	134.563
2027	139.206
2028	143.994
2029	149.084