Year	%
2000	30.168589859419605
2001	29.806938431055993
2002	29.37595165375447
2003	29.02787002928119
2004	28.712027484831665
2005	28.253736861462226
2006	27.83150492264416
2007	27.379769843611683
2008	26.876778122713702
2009	26.455404091513383
2010	26.04294776193601
2011	25.727693502150025
2012	25.458984880779266
2013	25.259070796460176
2014	25.148756159355237
2015	25.008277226140287
2016	24.95449522551198
2017	24.865072644084123
2018	24.834609115605193
2019	24.844535728704077