Quarter	Percent
1998-01-01	27.2357030554451
1998-04-01	27.7014755959137
1998-07-01	27.9168634860652
1998-10-01	27.6826990206993
1999-01-01	28.1777744270205
1999-04-01	27.9829037299241
1999-07-01	27.9644919222885
1999-10-01	27.5933337091107
2000-01-01	27.7572321612946
2000-04-01	28.5183656624020
2000-07-01	28.7939858645320
2000-10-01	28.5973850822313
2001-01-01	28.4421378494036
2001-04-01	28.4171484673285
2001-07-01	28.4039348070710
2001-10-01	27.5396710383306
2002-01-01	27.8806844904309
2002-04-01	28.9527906304222
2002-07-01	29.2857787810384
2002-10-01	29.1227627020785
2003-01-01	29.0481341265549
2003-04-01	29.7777697738078
2003-07-01	29.9375663470016
2003-10-01	29.6155159707368
2004-01-01	29.5729626836189
2004-04-01	30.2666044709175
2004-07-01	30.3328493843093
2004-10-01	30.1960784313726
2005-01-01	30.0357781753131
2005-04-01	30.6178620578721
2005-07-01	30.7403902804806
2005-10-01	30.7858314903332
2006-01-01	30.9426229508197
2006-04-01	31.4864600210088
2006-07-01	31.8532749848792
2006-10-01	31.3681928053462
2007-01-01	31.1929537947935
2007-04-01	31.8436646205159
2007-07-01	31.9248493442042
2007-10-01	31.7703722066792
2008-01-01	31.7194882412274
2008-04-01	32.4506005766952
2008-07-01	32.5293108631452
2008-10-01	32.3227859289376
2009-01-01	32.1781390827958
2009-04-01	32.6212185467911
2009-07-01	32.6389993109662
2009-10-01	32.1550962727433
2010-01-01	31.7904671014262
2010-04-01	32.0830163307914
2010-07-01	31.8259914625290
2010-10-01	30.9910101601149
2011-01-01	30.2856129146709
2011-04-01	29.9418192138499
2011-07-01	29.3723285387439
2011-10-01	28.4632571996028
2012-01-01	27.6749756054289
2012-04-01	27.3994742824666
2012-07-01	26.9064594705119
2012-10-01	26.5355521936460
2013-01-01	25.8114511704136
2013-04-01	26.0041717922661
2013-07-01	25.9023354564756
2013-10-01	25.5735890156588
2014-01-01	25.8940219819498
2014-04-01	26.4219132986242
2014-07-01	26.9263836646964