Year	maximum value in 2004 = 100
2006	1.6292518612
2007	1.6059847956
2008	1.6159789264
2009	1.6159789264
2010	1.6159789264
2011	1.6159789264
2012	1.6159789264
2013	1.6159789264
2014	1.6074953774
2015	1.6074953774
2016	1.6074953774
2017	1.6074953774
2018	1.6074953774
2019	1.7937036887
2020	1.7937036887
2021	1.7937036887