Year	%
2000	45.707348540145986
2001	45.61701326346815
2002	45.53189656735634
2003	45.430922657223896
2004	45.299310965188454
2005	45.162311368884595
2006	44.97368936011243
2007	44.730674294189306
2008	44.43740308381608
2009	44.18356095531907
2010	43.93678667604328
2011	43.699927025880356
2012	43.45619698674774
2013	43.25171111517793
2014	42.98628460193342
2015	42.74843401913249
2016	42.50045130176936
2017	42.22562517241939
2018	41.89999029047658
2019	41.602170788041285