Year	Index
1993	18.603
1994	25.983
1995	35.035
1996	43.674
1997	48.116
1998	51.914
1999	55.779
2000	57.876
2001	61.537
2002	64.644
2003	67.419
2004	70.701
2005	74.994
2006	81.652
2007	91.05
2008	97.872
2009	98.294
2010	100
2011	105.261
2012	108.587
2013	112.448
2014	115.808
2015	116.995
2016	118.693
2017	123.284
2018	128.958
2019	132.394
2020	136.351
2021	140.579
2022	144.612
2023	148.725
2024	152.989