Year	%
2004	2.42
2008	4.48
2010	7.56
2011	7.43
2012	7.49
2013	7.62
2014	6.95
2015	6.91
2016	5.12
2017	4.79
2018	4.64
2019	5.39
2020	4.17
2021	4.48