Quarter	Percent
2002-04-01	60.5341208101485
2002-07-01	61.3747532805552
2002-10-01	61.4389428514152
2003-01-01	62.0838509614889
2003-04-01	62.8776516950708
2003-07-01	63.3385592195772
2003-10-01	63.2055035718519
2004-01-01	62.2400535536237
2004-04-01	63.0621622413510
2004-07-01	63.1723638141858
2004-10-01	62.9042116305253
2005-01-01	62.0292736599536
2005-04-01	62.2443168993903
2005-07-01	62.1594077282864
2005-10-01	62.1148067879428
2006-01-01	61.8590613796848
2006-04-01	62.1269674300054
2006-07-01	63.4442736956045
2006-10-01	62.8004606661926
2007-01-01	62.2399608450090
2007-04-01	62.3378840057797
2007-07-01	63.0109353294368
2007-10-01	62.7766155456986
2008-01-01	62.1016710735414
2008-04-01	62.3891748313435
2008-07-01	62.7679522730476
2008-10-01	63.3152618995996
2009-01-01	62.1209113597084
2009-04-01	62.0398650371675
2009-07-01	62.3703121391834
2009-10-01	62.3290227718557
2010-01-01	62.1516769265509
2010-04-01	62.4685412682958
2010-07-01	62.6937672183195
2010-10-01	62.7401424368663
2011-01-01	61.9888131718680
2011-04-01	62.3398229283772
2011-07-01	62.6336880139156
2011-10-01	62.3811516455997
2012-01-01	61.9313053593588
2012-04-01	62.3332521268073
2012-07-01	62.1363154294029
2012-10-01	62.9700894004836
2013-01-01	62.0316371239304
2013-04-01	61.9049954330538
2013-07-01	61.9119760836786
2013-10-01	61.4066962093316
2014-01-01	60.4176442331658
2014-04-01	60.0148925882757
2014-07-01	60.2397001539101
2014-10-01	60.3372846930362
2015-01-01	59.6290571534870
2015-04-01	59.8121820597486
2015-07-01	59.8837071879328