Year	%
2000	49.34340257642224
2001	49.213672697836515
2002	49.02935286339458
2003	48.89700217578406
2004	48.66758165888399
2005	48.368874439990904
2006	48.05905454732376
2007	47.70366131357381
2008	47.292850325680924
2009	46.920091736795015
2010	46.5889288042126
2011	46.288797478668116
2012	46.06903189348094
2013	45.88600812316216
2014	45.72544461388933
2015	45.62023216308709
2016	45.5064062324009
2017	45.395369362975615
2018	45.28563133623745
2019	45.20386095094618