Year	Index (Units)
1980	31.225
1981	34.076
1982	37.102
1983	40.379
1984	43.443
1985	46.236
1986	47.915
1987	50.431
1988	53.410
1989	56.888
1990	63.243
1991	68.199
1992	68.562
1993	72.074
1994	73.975
1995	75.686
1996	76.045
1997	78.051
1998	78.105
1999	78.865
2000	80.052
2001	82.484
2002	83.799
2003	85.401
2004	86.365
2005	87.318
2006	88.544
2007	90.574
2008	92.988
2009	95.152
2010	96.842
2011	97.651
2012	98.601
2013	98.850
2014	99.156
2015	100.000
2016	101.416
2017	103.216
2018	105.506
2019	107.310
2020	107.739
2021	111.944
2022	123.397
2023	127.129
2024	130.117
2025	132.719
2026	135.373
2027	138.081
2028	140.842
2029	143.659