Quarter	Percent
1999-04-01	1.58730158730159
2000-04-01	1.30331753554502
2001-04-01	1.50812064965197
2002-04-01	3.26340326340326
2003-01-01	4.46859903381643
2003-04-01	4.02298850574713
2003-07-01	2.78099652375435
2003-10-01	3.02297460701330
2004-01-01	3.42298288508557
2004-04-01	5.17241379310345
2004-07-01	1.76056338028169
2004-10-01	1.89349112426036
2005-01-01	3.34928229665072
2005-04-01	2.68456375838926
2005-07-01	1.23318385650224
2005-10-01	3.10701956271576
2006-01-01	2.03619909502262
2006-04-01	3.86624869383490
2006-07-01	2.08116545265349
2006-10-01	2.43902439024390
2007-01-01	1.90073917634636
2007-04-01	3.42396777442095
2007-07-01	1.60642570281124
2007-10-01	2.02634245187437
2008-01-01	2.27743271221532
2008-04-01	3.22580645161290
2008-07-01	2.56157635467980
2008-10-01	5.00000000000000
2009-01-01	9.06217070600632
2009-04-01	10.67073170731710
2009-07-01	6.44490644490644
2009-10-01	8.03858520900322
2010-01-01	9.26724137931034
2010-04-01	9.38144329896907
2010-07-01	6.18996798292423
2010-10-01	8.42217484008529
2011-01-01	9.90099009900990
2011-04-01	9.39457202505219
2011-07-01	5.58482613277134
2011-10-01	6.22986036519871
2012-01-01	7.50000000000000
2012-04-01	7.24789915966386
2012-07-01	4.98938428874735
2012-10-01	5.44662309368192
2013-01-01	6.16883116883117
2013-04-01	7.41116751269036
2013-07-01	4.48979591836735
2013-10-01	4.44444444444444
2014-01-01	6.51260504201681
2014-04-01	5.82914572864322
2014-07-01	3.51758793969849
2014-10-01	4.15800415800416
2015-01-01	4.20512820512820
2015-04-01	4.58536585365854
2015-07-01	3.04818092428712
2015-10-01	3.86571719226857
2016-01-01	3.86521308225966
2016-04-01	3.10442144873001
2016-07-01	2.35404896421846
2016-10-01	2.40847784200385
2017-01-01	3.05343511450382
2017-04-01	3.39449541284404
2017-07-01	1.86741363211951
2017-10-01	2.73069679849341
2018-01-01	3.15985130111524
2018-04-01	3.69369369369369