Year	Index (Units)
1980	28.603
1981	32.236
1982	33.944
1983	35.200
1984	35.480
1985	36.346
1986	37.018
1987	37.925
1988	39.398
1989	41.518
1990	43.917
1991	46.458
1992	48.325
1993	49.958
1994	52.483
1995	55.525
1996	58.758
1997	62.067
1998	67.008
1999	67.167
2000	68.308
2001	69.408
2002	69.867
2003	71.133
2004	73.133
2005	76.400
2006	80.000
2007	81.733
2008	86.217
2009	85.467
2010	88.286
2011	91.650
2012	94.411
2013	96.474
2014	98.302
2015	97.418
2016	97.601
2017	98.250
2018	99.297
2019	99.998
2020	99.151
2021	100.372
2022	106.472
2023	107.779
2024	108.534
2025	109.847
2026	111.701
2027	113.935
2028	116.214
2029	118.538