Year	%
2000	26.872229696928116
2001	26.802898733571077
2002	26.63800866102825
2003	26.615053640874287
2004	26.284439802640048
2005	25.977453709641537
2006	25.821690748076378
2007	25.588371055468627
2008	25.374873762813927
2009	25.14115835749328
2010	24.709457549248018
2011	24.31525023471849
2012	24.309983630581392
2013	23.987816870506624
2014	23.844360723772795
2015	23.932537883050053
2016	23.576362421695805
2017	23.212350247193395
2018	23.078998641230484
2019	22.932043239154826