Year	Index (Units)
1980	16.848
1981	16.394
1982	16.916
1983	18.468
1984	18.468
1985	18.468
1986	18.468
1987	18.468
1988	23.813
1989	23.210
1990	24.200
1991	25.888
1992	26.638
1993	27.089
1994	27.857
1995	32.317
1996	33.253
1997	36.994
1998	38.954
1999	43.266
2000	48.934
2001	52.318
2002	58.310
2003	61.206
2004	62.959
2005	67.948
2006	74.337
2007	76.415
2008	85.329
2009	81.165
2010	89.215
2011	97.095
2012	96.537
2013	100.000
2014	105.437
2015	104.142
2016	106.762
2017	114.982
2018	126.247
2019	127.588
2020	129.673
2021	145.124
2022	167.538
2023	163.671
2024	170.022
2025	177.244
2026	184.101
2027	190.264
2028	196.323
2029	203.098