Year	Index
1980	5.246
1981	5.348
1982	5.764
1983	5.969
1984	5.95
1985	7.044
1986	7.435
1987	6.755
1988	6.904
1989	7.569
1990	7.964
1991	9.625
1992	11.649
1993	12.812
1994	12.962
1995	14.693
1996	14.828
1997	13.876
1998	14.375
1999	15.517
2000	15.62
2001	14.333
2002	14.57
2003	17.158
2004	17.711
2005	19.775
2006	22.456
2007	26.328
2008	38.011
2009	41.234
2010	44.588
2011	59.405
2012	73.741
2013	79.693
2014	85.594
2015	93.784
2016	100
2017	110.689
2018	125.981
2019	137.661
2020	148.674
2021	160.567
2022	173.413
2023	187.286
2024	202.269