Year	Index (Units)
1980	41.301
1981	42.027
1982	44.008
1983	47.291
1984	50.213
1985	54.197
1986	57.254
1987	60.514
1988	63.236
1989	68.553
1990	70.752
1991	76.166
1992	79.507
1993	81.637
1994	87.874
1995	88.563
1996	91.455
1997	92.776
1998	95.133
1999	97.545
2000	95.807
2001	97.803
2002	98.577
2003	95.502
2004	99.123
2005	97.687
2006	100.000
2007	101.525
2008	103.057
2009	111.305
2010	111.636
2011	113.517
2012	111.290
2013	115.259
2014	114.916
2015	122.753
2016	127.293
2017	123.380
2018	126.742
2019	132.425
2020	130.925
2021	134.885
2022	139.670
2023	144.507
2024	148.564
2025	151.659
2026	154.692
2027	157.786
2028	160.942
2029	164.160