Year	Index
1990	0.129
1991	0.399
1992	1.698
1993	4.804
1994	7.988
1995	12.23
1996	17.682
1997	21.2
1998	22.5
1999	24.6
2000	26.7
2001	28.8
2002	29.3
2003	30.6
2004	34
2005	37.2
2006	39
2007	44.5
2008	54.8
2009	55.9
2010	64
2011	70
2012	79.9
2013	88.9
2014	98.4
2015	99.5
2016	100.3
2017	107.5
2018	117.9
2019	126.389
2020	136.494
2021	146.127
2022	156.164
2023	167.056
2024	179.187