Year	maximum value in 2004 = 100
2008	2.7971345171
2009	1.026003953
2010	3.5503784762
2011	3.7500523289
2012	5.1091557856
2013	4.9164321329
2014	4.3818886229
2015	3.8702944861
2016	5.5215301206
2017	5.3174959707
2018	1.8118770574
2019	5.3313064991
2020	5.326167372
2021	6.1973244719