Year	%
2000	27.157669065066237
2001	27.144024017496257
2002	26.96147366069125
2003	26.942991819019834
2004	26.58859133649159
2005	26.18841419783269
2006	26.02006072962573
2007	25.76902826285783
2008	25.55886236716218
2009	25.382042031979356
2010	24.947174080561684
2011	24.639706539683196
2012	24.780386609113126
2013	24.479948882346047
2014	24.445329626117584
2015	24.696458289140608
2016	24.3916252407472
2017	24.042227393234658
2018	23.99127103994758
2019	23.899175318815388