Year	Index (Units)
1991	41.119
1992	42.710
1993	45.020
1994	47.603
1995	49.843
1996	51.154
1997	52.396
1998	53.453
1999	53.145
2000	54.404
2001	55.178
2002	55.942
2003	56.946
2004	58.696
2005	60.740
2006	62.893
2007	68.030
2008	74.322
2009	75.932
2010	78.056
2011	84.004
2012	84.897
2013	85.799
2014	88.743
2015	87.314
2016	89.415
2017	88.662
2018	90.410
2019	93.362
2020	93.644
2021	96.031
2022	99.472
2023	102.754
2024	104.649
2025	106.713
2026	108.911
2027	111.257
2028	113.711
2029	116.253