Year	%
2004	1.49
2008	4.01
2010	6.81
2011	7.54
2012	7.8
2013	7.35
2014	6.36
2015	5.27
2016	5.2
2017	4.91
2018	4.76
2019	4.43
2020	4
2021	4.19