Year	%
2004	2.29
2008	4.18
2010	7.52
2011	7.43
2012	7.51
2013	7.68
2014	7.07
2015	6.94
2016	5.15
2017	4.81
2018	4.63
2019	4.61
2020	4.15
2021	4.47