Quarter	Units, Seasonally Adjusted
1991-01-01	270.121097751024
1991-04-01	413.834081573679
1991-07-01	394.161101479235
1991-10-01	402.779222890095
1992-01-01	411.449614006340
1992-04-01	365.904768039470
1992-07-01	339.140876941564
1992-10-01	336.463002447269
1993-01-01	398.011584516485
1993-04-01	315.862433914401
1993-07-01	318.565017118534
1993-10-01	316.427280544838
1994-01-01	192.009952612534
1994-04-01	249.316208885119
1994-07-01	271.217445529270
1994-10-01	208.965401008584
1995-01-01	201.894035231015
1995-04-01	233.099217062051
1995-07-01	282.523962881759
1995-10-01	197.237274904332
1996-01-01	200.383194827164
1996-04-01	234.166280841262
1996-07-01	248.637638606490
1996-10-01	221.750826701548
1997-01-01	280.779986228959
1997-04-01	246.795068031418
1997-07-01	254.959112105286
1997-10-01	382.399142483667
1998-01-01	239.314897317757
1998-04-01	237.085616699942
1998-07-01	267.698661489376
1998-10-01	344.704695096944
1999-01-01	334.397336547692
1999-04-01	237.796740997621
1999-07-01	249.661611714774
1999-10-01	386.567817144251
2000-01-01	218.805400399875
2000-04-01	339.421347649299
2000-07-01	395.027469248197
2000-10-01	217.969248736316
2001-01-01	250.892670829762
2001-04-01	209.055407178920
2001-07-01	260.228459128370
2001-10-01	221.898995080988
2002-01-01	182.824701567906
2002-04-01	323.896409462448
2002-07-01	173.963431656832
2002-10-01	267.727556218105
2003-01-01	260.416316877443
2003-04-01	307.204090006765
2003-07-01	231.534186045480
2003-10-01	319.275183750142
2004-01-01	273.299715929363
2004-04-01	273.445746405109
2004-07-01	520.718504475517
2004-10-01	227.077672916917
2005-01-01	382.202803900366
2005-04-01	384.155982121739
2005-07-01	378.126943175581
2005-10-01	447.831498565676
2006-01-01	390.724699139702
2006-04-01	394.415603891555
2006-07-01	347.841828286086
2006-10-01	336.848632515952
2007-01-01	383.218397485990
2007-04-01	461.066882325405
2007-07-01	315.187626891898
2007-10-01	478.059565773279
2008-01-01	359.251812168037
2008-04-01	283.122574860575
2008-07-01	327.002417514702
2008-10-01	357.304130677546
2009-01-01	261.839974084872
2009-04-01	294.053553672737
2009-07-01	294.867610516241
2009-10-01	353.144758633420
2010-01-01	324.181062691587
2010-04-01	373.341398454400
2010-07-01	323.798332010942
2010-10-01	288.845736292702
2011-01-01	330.631624258953
2011-04-01	439.794866077773
2011-07-01	461.169591397583
2011-10-01	270.134650517485
2012-01-01	393.207059732315
2012-04-01	346.901513183438
2012-07-01	377.446350518510
2012-10-01	333.782895040569
2013-01-01	338.589514387939
2013-04-01	318.425427305617
2013-07-01	292.257055306378
2013-10-01	298.323707192767
2014-01-01	468.688420653081
2014-04-01	364.387398913391
2014-07-01	446.210680009525
2014-10-01	748.441250168157
2015-01-01	368.692119481505
2015-04-01	470.957520993639
2015-07-01	278.018894322834
2015-10-01	360.773300344601
2016-01-01	349.971852988805
2016-04-01	636.091037209467
2016-07-01	479.818776472332
2016-10-01	248.040002322572
2017-01-01	454.093003443078
2017-04-01	527.144724556489