Quarter	Percent
2005-01-01	30.6521693384333
2005-04-01	30.7858335559054
2005-07-01	31.1509087838233
2005-10-01	33.0423895802839
2006-01-01	32.0733511275230
2006-04-01	32.2326773828188
2006-07-01	33.6318251311838
2006-10-01	33.8212112092581
2007-01-01	32.5270893732603
2007-04-01	32.7630095600667
2007-07-01	33.5309702715402
2007-10-01	34.7145927997664
2008-01-01	33.6014346063104
2008-04-01	34.5017659729278
2008-07-01	32.8251910636402
2008-10-01	32.6892243846924
2009-01-01	32.8392352267461
2009-04-01	33.1313855094740
2009-07-01	35.0331980279904
2009-10-01	35.1473073573960
2010-01-01	34.5082846457640
2010-04-01	35.8689394088294
2010-07-01	35.0681283960684
2010-10-01	34.5058165206087
2011-01-01	34.5618742546687
2011-04-01	34.9409106688172
2011-07-01	36.3017730661171
2011-10-01	37.0520668562286
2012-01-01	36.6765415899428
2012-04-01	37.7682235524455
2012-07-01	37.8969263593919
2012-10-01	36.7839230107086
2013-01-01	36.4216004330884
2013-04-01	37.9802622817801
2013-07-01	37.5020589688684
2013-10-01	37.9400973212159
2014-01-01	37.3873200069065
2014-04-01	36.8602813827533
2014-07-01	36.2613227941274
2014-10-01	36.5134819647159
2015-01-01	36.4852508574493
2015-04-01	36.4354235409834
2015-07-01	37.8609784189071
2015-10-01	37.8093217940563
2016-01-01	36.4071502794914
2016-04-01	37.6744337384886
2016-07-01	38.0876912770880
2016-10-01	37.9253187522730
2017-01-01	37.4017326142459
2017-04-01	37.1457531855878
2017-07-01	36.4456560636524
2017-10-01	36.3159420670183
2018-01-01	36.8059376627747
2018-04-01	36.9212966659321