Quarter	Percent
1999-01-01	40.1836434411726
1999-04-01	39.6397906539271
1999-07-01	39.5727403102941
1999-10-01	39.4405021325734
2000-01-01	38.9529477403757
2000-04-01	38.7465129254231
2000-07-01	39.1694871127311
2000-10-01	39.4670286755681
2001-01-01	39.0469813636871
2001-04-01	39.3556667472703
2001-07-01	39.6573828059679
2001-10-01	39.6795598594822
2002-01-01	39.0136528280858
2002-04-01	39.2069830067787
2002-07-01	39.6471352957563
2002-10-01	39.8714781865795
2003-01-01	39.4852572785808
2003-04-01	40.2178350094630
2003-07-01	40.5239915389468
2003-10-01	40.2186015439430
2004-01-01	39.6072805857257
2004-04-01	40.0342810299214
2004-07-01	40.9323627427252
2004-10-01	40.9133219152580
2005-01-01	40.4881497190907
2005-04-01	40.8428962002715
2005-07-01	41.5191096412181
2005-10-01	41.8686727965078
2006-01-01	41.9153121056929
2006-04-01	42.5907370296148
2006-07-01	43.0768945298003
2006-10-01	43.2977065241594
2007-01-01	43.1900838714466
2007-04-01	43.3812068581608
2007-07-01	43.8797834470484
2007-10-01	44.4693711064966
2008-01-01	44.3358795609611
2008-04-01	44.5861762088401
2008-07-01	45.8114116339385
2008-10-01	45.6835865135235
2009-01-01	44.2566191446028
2009-04-01	43.9461966262033
2009-07-01	43.7326780237242
2009-10-01	43.0426990373778
2010-01-01	42.1835448884947
2010-04-01	42.6275138712234
2010-07-01	43.0422680602407
2010-10-01	43.1233755460930
2011-01-01	42.5802981974631
2011-04-01	43.0078813166435
2011-07-01	43.2145241450931
2011-10-01	42.9429763560501
2012-01-01	43.0157467202043
2012-04-01	43.2007845604426
2012-07-01	43.3506652110357
2012-10-01	42.8122050959421
2013-01-01	43.0195165225105
2013-04-01	43.0213646780513
2013-07-01	43.1433429437422
2013-10-01	43.0084275892659
2014-01-01	43.0454772060045
2014-04-01	43.4572277922414
2014-07-01	43.8755539143279