Quarter	Percent, Seasonally Adjusted
1999-01-01	23.7200317452541
1999-04-01	24.0465600600555
1999-07-01	24.7151065341191
1999-10-01	26.0606973468057
2000-01-01	26.2682232180504
2000-04-01	26.8948882461808
2000-07-01	26.7903964276555
2000-10-01	26.6557414799178
2001-01-01	27.4114670945428
2001-04-01	27.4864420385993
2001-07-01	27.5294364958888
2001-10-01	27.7472164272752
2002-01-01	28.2559492764062
2002-04-01	28.1318036824410
2002-07-01	28.4586183402964
2002-10-01	28.8131174882484
2003-01-01	28.6840638036531
2003-04-01	28.8364424618076
2003-07-01	29.0700482710237
2003-10-01	29.0073383756464
2004-01-01	29.4274160185826
2004-04-01	29.1942902885504
2004-07-01	29.3882671463524
2004-10-01	29.8918372808622
2005-01-01	31.1649059830882
2005-04-01	33.1483801052514
2005-07-01	33.6909834999899
2005-10-01	33.9415018513879
2006-01-01	34.9793240372518
2006-04-01	34.8216281432515
2006-07-01	34.0931268374258
2006-10-01	34.1262052491677
2007-01-01	33.6105318197265
2007-04-01	33.7191175206993
2007-07-01	34.5473816702085
2007-10-01	34.0055206673669
2008-01-01	33.2108859075329
2008-04-01	33.1922579524854
2008-07-01	32.5934442529506
2008-10-01	31.2918960934698
2009-01-01	28.4127525819319
2009-04-01	27.0250733946346
2009-07-01	25.6989425737713
2009-10-01	25.4542224740573
2010-01-01	25.4248836103154
2010-04-01	24.2354638559030
2010-07-01	24.0671135117065
2010-10-01	23.4597445667645
2011-01-01	22.8186695706033
2011-04-01	22.6092528915853
2011-07-01	21.7654491544538
2011-10-01	20.6357303633502
2012-01-01	19.7085117741922
2012-04-01	18.6464369215014
2012-07-01	17.8132592484186
2012-10-01	16.9327150973719
2013-01-01	16.9179831184769
2013-04-01	16.0213723437431
2013-07-01	15.9893051889303
2013-10-01	16.2213294081186
2014-01-01	15.9093822161402
2014-04-01	15.9457649191538
2014-07-01	15.5235447921884
2014-10-01	16.6508229342365
2015-01-01	16.8983550830488
2015-04-01	17.5742209696909
2015-07-01	17.5531408066758
2015-10-01	17.0437678625389
2016-01-01	16.8197992537712
2016-04-01	16.8604432434416
2016-07-01	17.6923124281757
2016-10-01	17.5728571842837
2017-01-01	18.8257667480861
2017-04-01	19.3047867433492
2017-07-01	20.1336175643114
2017-10-01	20.5377284481218
2018-01-01	20.2210495772754
2018-04-01	20.6329242479875
2018-07-01	20.3363134688899