Quarter	Units, Seasonally Adjusted
1960-01-01	77131.82327309310
1960-04-01	81737.21240913980
1960-07-01	81301.72980845779
1960-10-01	83377.11129676490
1961-01-01	90612.69865352931
1961-04-01	84173.73337059800
1961-07-01	91753.08630024099
1961-10-01	102814.12000935200
1962-01-01	99569.24026674840
1962-04-01	102202.24232879600
1962-07-01	104659.41861039301
1962-10-01	101721.79612185000
1963-01-01	97468.37079975959
1963-04-01	109883.68161364400
1963-07-01	107401.94948467401
1963-10-01	106132.38596974100
1964-01-01	109638.38098327800
1964-04-01	110853.71140411000
1964-07-01	114993.78315966800
1964-10-01	111582.60518944600
1965-01-01	116157.27887672100
1965-04-01	127569.10988275200
1965-07-01	128240.50047265101
1965-10-01	135880.46019146500
1966-01-01	136818.86086008800
1966-04-01	122996.55901429500
1966-07-01	125888.43660776300
1966-10-01	115682.97557042900
1967-01-01	105832.87054495200
1967-04-01	109984.21031994200
1967-07-01	114390.64163171401
1967-10-01	127585.20063846800
1968-01-01	100768.85713679900
1968-04-01	118729.45949631800
1968-07-01	123077.57143725900
1968-10-01	130121.39405717700
1969-01-01	141394.04535227600
1969-04-01	146952.47062008802
1969-07-01	157193.70202964800
1969-10-01	171967.50176834800
1970-01-01	163183.80298516498
1970-04-01	171467.86072024400
1970-07-01	178595.61349803102
1970-10-01	193289.84255083400
1971-01-01	177071.23270798900
1971-04-01	181512.37759855300
1971-07-01	190629.30161726500
1971-10-01	163351.02233460298
1972-01-01	175972.54796014098
1972-04-01	176771.44345122200
1972-07-01	180530.53738896500
1972-10-01	184926.09425851898
1973-01-01	193390.89724934700
1973-04-01	174162.28007384800
1973-07-01	164440.46650243600
1973-10-01	135770.80636950700
1974-01-01	127689.58913712400
1974-04-01	142100.73744607300
1974-07-01	152296.22235325300
1974-10-01	144088.27060461702
1975-01-01	154454.71448112700
1975-04-01	170969.95731393000
1975-07-01	185544.38619703500
1975-10-01	196629.35904893998
1976-01-01	189503.24457543900
1976-04-01	189362.56467341998
1976-07-01	184824.12156703500
1976-10-01	206227.55013876500
1977-01-01	212975.68182959402
1977-04-01	207229.91357491902
1977-07-01	212042.77235778098
1977-10-01	229887.57759563200
1978-01-01	219338.13461383500
1978-04-01	215656.48695481800
1978-07-01	229845.85497386300
1978-10-01	230477.08316139300
1979-01-01	226635.90738944200
1979-04-01	230204.81053095400
1979-07-01	208654.77092756100
1979-10-01	195312.50649853600
1980-01-01	211051.20602021300
1980-04-01	196059.86944611600
1980-07-01	205507.38562576700
1980-10-01	195130.03402823798
1981-01-01	198096.94044101900
1981-04-01	188577.46297459700
1981-07-01	193477.48906410002
1981-10-01	195507.98445082400
1982-01-01	182774.83315193502
1982-04-01	179927.54954326800
1982-07-01	171113.48660817300
1982-10-01	180392.56136505600
1983-01-01	196171.06410867602
1983-04-01	213568.88527266402
1983-07-01	198283.28312781600
1983-10-01	196194.34605552900
1984-01-01	210955.75221156699
1984-04-01	188566.10578692998
1984-07-01	198903.93521393000
1984-10-01	196881.50203845200
1985-01-01	179782.09062618500
1985-04-01	193249.69828839400
1985-07-01	212780.01215818900
1985-10-01	208068.96458666900
1986-01-01	218586.70627929900
1986-04-01	224865.05590445900
1986-07-01	246002.44385044603
1986-10-01	258967.24677017000
1987-01-01	198491.94738115100
1987-04-01	248406.50746946900
1987-07-01	258253.95443991802
1987-10-01	263672.31808606803
1988-01-01	204801.47967699900
1988-04-01	238434.05856720198
1988-07-01	253098.58486086000
1988-10-01	236525.17354367502
1989-01-01	229397.26764041200
1989-04-01	238600.92247651902
1989-07-01	237543.08747787602
1989-10-01	239265.49081866900
1990-01-01	241084.88326710300
1990-04-01	244054.13640503000
1990-07-01	266520.63951714600
1990-10-01	263207.15035802603
1991-01-01	369321.20657509500
1991-04-01	383966.30104045000
1991-07-01	330649.22599200800
1991-10-01	279059.76967247300
1992-01-01	347212.30790931800
1992-04-01	333212.16207048100
1992-07-01	312270.19383040600
1992-10-01	310422.29230401400
1993-01-01	272367.81016453804
1993-04-01	269998.32646819800
1993-07-01	267257.46797590697
1993-10-01	253635.06421909200
1994-01-01	280170.64601136796
1994-04-01	266217.47057864200
1994-07-01	257365.09276815400
1994-10-01	268981.94368319004
1995-01-01	270687.99311114500
1995-04-01	279817.50127042696
1995-07-01	277806.01744191605
1995-10-01	278940.68412401900
1996-01-01	293932.19061872400
1996-04-01	318647.14825129700
1996-07-01	308900.43002136797
1996-10-01	281131.21144524304
1997-01-01	288875.80163667900
1997-04-01	289933.16636246500
1997-07-01	300933.11934957500
1997-10-01	295554.33966908100
1998-01-01	316671.90680740704
1998-04-01	289411.71899225300
1998-07-01	310110.26978491404
1998-10-01	326894.33496740900
1999-01-01	317424.44162874500
1999-04-01	322879.73634828000
1999-07-01	317580.54708498204
1999-10-01	302464.44679564703
2000-01-01	290560.72454127100
2000-04-01	279468.19615389600
2000-07-01	280078.33600849200
2000-10-01	274057.47508481700
2001-01-01	275648.29912043000
2001-04-01	282765.54578675004
2001-07-01	276437.32610459300
2001-10-01	275185.11983163300
2002-01-01	276828.57712678100
2002-04-01	268459.15930304800
2002-07-01	272861.21122245600
2002-10-01	266278.97209233600
2003-01-01	271551.89494856104
2003-04-01	269524.54954764700
2003-07-01	275491.03870232600
2003-10-01	261407.12996831798
2004-01-01	260406.86643396702
2004-04-01	267720.07417604997
2004-07-01	263396.68408992100
2004-10-01	290883.20231661300
2005-01-01	265747.42435929895
2005-04-01	278499.18789677500
2005-07-01	278244.03061825500
2005-10-01	283184.37704968196
2006-01-01	276189.82763883204
2006-04-01	278943.32431290500
2006-07-01	284509.32336880800
2006-10-01	318363.03537272000
2007-01-01	248566.03565222400
2007-04-01	254377.66291680298
2007-07-01	269595.38039531400
2007-10-01	274065.67257325800
2008-01-01	265293.10479196500
2008-04-01	261128.82165538002
2008-07-01	256317.42424539800
2008-10-01	244870.79399382303
2009-01-01	303673.13724921900
2009-04-01	352426.33390687200
2009-07-01	323514.46504851204
2009-10-01	277890.31342049997
2010-01-01	235875.76088457898
2010-04-01	236679.47923213700
2010-07-01	241709.34950327600
2010-10-01	256497.43747909900
2011-01-01	268645.02964129600
2011-04-01	256668.81488894302
2011-07-01	270301.27293469100
2011-10-01	268003.68913526897
2012-01-01	265924.09586969303
2012-04-01	258472.85291833300
2012-07-01	254348.78445368000
2012-10-01	246523.39788532600
2013-01-01	240218.53665312100
2013-04-01	246283.73759518002
2013-07-01	246533.30407018500
2013-10-01	251143.92936587600
2014-01-01	249044.26026065500
2014-04-01	250441.54036769900
2014-07-01	255541.09568799502
2014-10-01	258287.78704454600
2015-01-01	263330.96345462600
2015-04-01	260360.01053946700
2015-07-01	271085.65068144900
2015-10-01	273595.15402468100
2016-01-01	275546.86460859400
2016-04-01	281241.79832070700
2016-07-01	282831.14887235600
2016-10-01	276839.89898041800
2017-01-01	288146.98848197004
2017-04-01	286196.30443885596
2017-07-01	287749.87732628104
2017-10-01	288064.40653201000
2018-01-01	307074.84195064096
2018-04-01	287340.66459671700
2018-07-01	292111.84734461000