Year	%
2008	1.68139773681757
2009	3.20168767980185
2010	2.83234869790715
2011	2.71087690835903
2012	3.09784428543666
2013	3.22716888618912
2014	2.98266215275664
2015	2.71198466589929
2016	2.54052744825368
2017	2.3054270766456
2018	1.95988149570236
2019	1.83848146599807
2020	1.88205796784214
2021	1.7316350000646
2022	1.60908238214058