Year	Index (Units)
1980	8.903
1981	10.030
1982	10.806
1983	12.163
1984	12.955
1985	13.765
1986	14.989
1987	16.347
1988	17.526
1989	18.327
1990	20.379
1991	23.126
1992	25.407
1993	27.257
1994	30.057
1995	33.051
1996	36.169
1997	38.644
1998	43.717
1999	45.214
2000	46.940
2001	49.025
2002	51.475
2003	53.583
2004	55.725
2005	57.775
2006	61.667
2007	65.317
2008	71.333
2009	78.900
2010	86.292
2011	93.292
2012	102.667
2013	112.300
2014	118.850
2015	124.683
2016	130.325
2017	135.000
2018	139.608
2019	146.267
2020	155.283
2021	163.833
2022	174.733
2023	184.125
2024	192.527
2025	200.549
2026	208.755
2027	217.106
2028	225.790
2029	234.821