Year	Index (Units)
1980	309.628
1981	338.597
1982	366.944
1983	376.397
1984	389.017
1985	403.572
1986	404.013
1987	418.530
1988	430.814
1989	443.283
1990	462.448
1991	476.892
1992	489.178
1993	498.407
1994	514.247
1995	528.513
1996	549.186
1997	556.503
1998	586.411
1999	600.615
2000	620.405
2001	639.925
2002	652.200
2003	666.163
2004	691.843
2005	737.438
2006	777.946
2007	807.367
2008	860.347
2009	903.214
2010	925.741
2011	947.680
2012	958.855
2013	970.189
2014	981.836
2015	1001.254
2016	1023.491
2017	1044.909
2018	1066.308
2019	1091.991
2020	1118.072
2021	1148.445
2022	1186.683
2023	1219.956
2024	1243.130
2025	1271.233
2026	1301.106
2027	1334.222
2028	1367.712
2029	1399.622