Year	Index
1990	15.808
1991	19.301
1992	21.642
1993	23.977
1994	27.02
1995	29.342
1996	32.049
1997	34.414
1998	37.678
1999	40.905
2000	45.85
2001	49.997
2002	57.123
2003	58.595
2004	61.075
2005	63.265
2006	67.082
2007	70.787
2008	78.69
2009	84.927
2010	87.526
2011	94
2012	100
2013	104.894
2014	109.754
2015	113.811
2016	122.117
2017	128.427
2018	135.04
2019	142.062
2020	149.734
2021	157.969
2022	166.658
2023	175.824
2024	185.494