Year	%
2000	25.34412560364288
2001	25.37859319161649
2002	25.344463472911343
2003	25.347702700314063
2004	25.09096447128637
2005	24.861893020374467
2006	24.778867554550597
2007	24.576498513438636
2008	24.517710105351696
2009	24.44529986153778
2010	24.154642389543305
2011	23.818861363495245
2012	23.832172332768923
2013	23.373731597539933
2014	23.257260095999854
2015	23.390586798316065
2016	22.986108996652373
2017	22.5934055633551
2018	22.530257761685004
2019	22.385609444218094