Year	maximum value in 2004 = 100
2006	2.7551293957
2007	3.8281953349
2008	3.9796198639
2009	3.8187176141
2010	1.7749560854
2011	1.6135219587
2012	2.4653585735
2013	2.2231172507
2014	2.3944347199
2015	2.3944347199
2016	2.3944347199
2017	2.77080559
2018	4.0399916518
2019	4.0399916518
2020	4.4141730866
2021	4.4141730866