Year	Number
2005	0.669579744338989
2006	0.759645164012909
2007	0.751307845115662
2008	0.84583979845047
2009	0.548013806343079
2010	0.548618793487549
2011	0.405029863119125
2012	0.382097542285919
2013	0.409213781356812
2014	0.481254667043686
2015	0.312694877386093
2016	0.314300984144211
2017	0.3108189702034
2018	0.29396253824234
2019	0.306421160697937
2020	0.304204136133194
2021	0.325693815946579
2022	0.338337033987045