Year	%
2005	4.40178559448821
2008	2.44971206075607
2011	2.67019501469286
2012	3.37395391664123
2013	4.02772863501631
2014	4.34584976316209
2015	5.88352227400692
2016	9.18565591814957
2017	9.97528206363178
2018	9.46095691207992
2019	9.23442899080834
2020	7.93883072465331
2021	6.54245582956179