Year	%
2000	12.207388311062815
2001	11.884116704963448
2002	11.686068629477589
2003	11.494664888460486
2004	11.125361648648092
2005	10.947930343330412
2006	10.64761903606125
2007	10.452193665116873
2008	10.339437309496194
2009	10.15878474010809
2010	9.974756707429826
2011	9.812533308851052
2012	9.718209564464532
2013	9.557263449355013
2014	9.446880040908054
2015	9.463192926398225
2016	9.434347502424146
2017	9.273081327492486
2018	9.194677842485534
2019	9.122678263677821