Year	maximum value in 2004 = 100
2008	2.1678198798
2009	1.026003953
2010	2.3493618998
2012	3.6213919541
2013	2.795752444
2014	2.7583650805
2015	2.8142027098
2016	2.8142027098
2017	1.7984434096
2018	1.8118770574
2019	1.8118770574
2020	1.7049561067
2021	1.7049561067