Quarter	Percent
1999-04-01	7.82997762863535
2000-01-01	16.12903225806450
2000-04-01	12.39892183288410
2000-07-01	12.58426966292130
2000-10-01	18.55421686746990
2001-01-01	12.56684491978610
2001-04-01	8.31234256926952
2001-07-01	10.64814814814810
2001-10-01	14.02298850574710
2002-01-01	11.93317422434370
2002-04-01	12.71820448877810
2002-07-01	10.07957559681700
2002-10-01	13.06532663316580
2003-01-01	12.21374045801530
2003-04-01	8.29015544041451
2003-07-01	10.64935064935060
2003-10-01	7.74487471526196
2004-01-01	8.24742268041237
2004-04-01	4.95626822157434
2004-07-01	5.21978021978022
2004-10-01	8.21256038647343
2005-01-01	13.01204819277110
2005-04-01	6.12244897959184
2005-07-01	2.51396648044693
2005-10-01	4.01002506265664
2006-01-01	3.32541567695962
2006-04-01	7.31132075471698
2006-07-01	5.46875000000000
2006-10-01	10.96938775510200
2007-01-01	10.33653846153850
2007-04-01	5.14705882352941
2007-07-01	4.83460559796438
2007-10-01	6.92840646651270
2008-01-01	4.22222222222222
2008-04-01	3.46420323325635
2008-07-01	4.45434298440980
2008-10-01	8.60655737704918
2009-01-01	6.22317596566524
2009-04-01	7.06401766004415
2009-07-01	15.16483516483520
2009-10-01	18.69747899159660
2010-01-01	20.67415730337080
2010-04-01	23.98190045248870
2010-07-01	18.08035714285710
2010-10-01	15.24390243902440
2011-01-01	19.64285714285710
2011-04-01	15.75492341356670
2011-07-01	7.62711864406780
2011-10-01	15.90909090909090
2012-01-01	14.69387755102040
2012-04-01	10.34482758620690
2012-07-01	6.09243697478992
2012-10-01	6.69291338582677
2013-01-01	9.74155069582505
2013-04-01	8.07086614173228
2013-07-01	5.88235294117647
2013-10-01	8.71287128712871
2014-01-01	9.03614457831325
2014-04-01	7.44878957169460
2014-07-01	3.77358490566038
2014-10-01	2.99065420560748
2015-01-01	7.51445086705202
2015-04-01	8.24949698189135
2015-07-01	6.75422138836773
2015-10-01	4.97131931166348
2016-01-01	7.50988142292490
2016-04-01	10.29668411867360
2016-07-01	9.31458699472759
2016-10-01	10.68702290076340
2017-01-01	7.58122743682310
2017-04-01	6.98080279232112
2017-07-01	7.85714285714286
2017-10-01	7.60869565217391
2018-01-01	10.68139963167590
2018-04-01	9.47176684881603