Year	Index
1990	39.354
1991	41.569
1992	45.785
1993	50.076
1994	52.143
1995	55.555
1996	58.156
1997	60.846
1998	65.732
1999	68.411
2000	70.637
2001	73.967
2002	76.849
2003	80.808
2004	89.186
2005	100
2006	106.241
2007	113.948
2008	122.438
2009	125.054
2010	132.885
2011	140.441
2012	147.326
2013	153.413
2014	159.2
2015	159.974
2016	162.329
2017	166.012
2018	171.079
2019	177.751
2020	184.861
2021	192.441
2022	200.716
2023	209.346
2024	218.348