Year	%
2005	2.92
2007	2.94
2008	3.48
2009	3.58
2010	3.69
2011	3.07
2012	3.22
2013	3.76
2014	3.79
2015	3.89
2016	3.8
2017	3.7
2018	3.7
2019	3.46
2020	2.97
2021	3.66