Quarter	Units, Seasonally Adjusted
2003-01-01	25794.7800796920
2003-04-01	29123.6518313153
2003-07-01	31022.8959896442
2003-10-01	33736.9832778520
2004-01-01	30925.4365213882
2004-04-01	29563.3016187949
2004-07-01	23283.1118777941
2004-10-01	21004.8445780331
2005-01-01	20786.4626645753
2005-04-01	20089.7622494094
2005-07-01	20206.7355377100
2005-10-01	17500.6517604261
2006-01-01	18178.5315372170
2006-04-01	19491.0272496060
2006-07-01	20787.7493610079
2006-10-01	21562.3092474419
2007-01-01	22530.9994721484
2007-04-01	24622.5046153818
2007-07-01	25491.3975832377
2007-10-01	25091.0434213798
2008-01-01	27239.5850940248
2008-04-01	26383.2098899917
2008-07-01	25081.5725991082
2008-10-01	27468.8779079894
2009-01-01	27667.2780557450
2009-04-01	26347.9013537030
2009-07-01	26619.7316680781
2009-10-01	25860.8874637070
2010-01-01	24812.7126708305
2010-04-01	26012.0873716106
2010-07-01	28387.8102416485
2010-10-01	31832.7088674582
2011-01-01	23879.3658314823
2011-04-01	24752.0646683199
2011-07-01	25383.7546956821
2011-10-01	25596.9200615878
2012-01-01	23870.1719227116
2012-04-01	23395.6578545190
2012-07-01	22033.8419776012
2012-10-01	21116.0588475362
2013-01-01	23391.3005760789
2013-04-01	23837.4536242990
2013-07-01	24615.9557551268
2013-10-01	24693.7252049294
2014-01-01	29635.2812606194
2014-04-01	25638.1292554590
2014-07-01	26137.4166112753
2014-10-01	26723.0310231964
2015-01-01	27869.6071182164
2015-04-01	28176.4987470074
2015-07-01	30190.5508050926
2015-10-01	31242.9892409016
2016-01-01	31835.0869721094
2016-04-01	35080.2475612642
2016-07-01	34986.3507482954
2016-10-01	37039.2052984097
2017-01-01	38097.3094856017
2017-04-01	40075.4645351116
2017-07-01	41706.5318825360
2017-10-01	42056.0062256729
2018-01-01	42435.1284301146
2018-04-01	43845.0159649145
2018-07-01	50237.7024816612