Quarter	Units, Seasonally Adjusted
2003-01-01	12838.2207002151
2003-04-01	12460.5205632658
2003-07-01	13322.2892735140
2003-10-01	12367.9556498801
2004-01-01	12001.1839727946
2004-04-01	11576.6182388519
2004-07-01	12145.4843474385
2004-10-01	12120.8773289062
2005-01-01	11766.1939716772
2005-04-01	13321.8450007738
2005-07-01	12548.1525292679
2005-10-01	12823.0280185758
2006-01-01	12605.9254168365
2006-04-01	12921.8272006063
2006-07-01	13196.1796784277
2006-10-01	13545.7812424500
2007-01-01	14092.0856127667
2007-04-01	13938.8322368952
2007-07-01	14627.2957826558
2007-10-01	15456.6456449567
2008-01-01	15805.2281821566
2008-04-01	15124.7528610434
2008-07-01	16049.6764730775
2008-10-01	13995.6502302504
2009-01-01	13489.8776963202
2009-04-01	14358.9689753856
2009-07-01	13863.3840621243
2009-10-01	14094.5286203890
2010-01-01	13878.4824340787
2010-04-01	14882.0852843314
2010-07-01	13350.3571491548
2010-10-01	14010.6216261887
2011-01-01	14842.9235580568
2011-04-01	13938.2995094792
2011-07-01	14197.6712089995
2011-10-01	15047.9136489809
2012-01-01	15258.4954185111
2012-04-01	15343.0025284507
2012-07-01	13493.4293671130
2012-10-01	13932.5540294054
2013-01-01	12765.1948651542
2013-04-01	13454.4012931638
2013-07-01	14126.1294576717
2013-10-01	14613.2091600160
2014-01-01	14940.0156899796
2014-04-01	15457.3578979309
2014-07-01	16982.2736287744
2014-10-01	16767.5611067473
2015-01-01	18371.9613063425
2015-04-01	18086.0129614476
2015-07-01	20759.3501887664
2015-10-01	19875.7870164749
2016-01-01	20418.7392532218
2016-04-01	22058.2129269586
2016-07-01	21607.6948592779
2016-10-01	22636.4175056311
2017-01-01	22935.7430530023
2017-04-01	22934.6825718737
2017-07-01	22424.3552497154
2017-10-01	22301.1016432079
2018-01-01	22989.9594363237
2018-04-01	22800.9850600351
2018-07-01	23293.2018285912