Year	%
2008	2.15099820496032
2009	1.79656609383679
2010	2.09259938242001
2011	2.79209384764478
2012	3.43791016533393
2013	3.10707263260723
2014	3.49733108025613
2015	2.75511790461508
2016	2.63885944068427
2017	2.11141959192174
2018	2.12656065140467
2019	1.77330386734804
2020	1.87185415971075
2021	1.59911146644285