Quarter	Percent, Seasonally Adjusted
1991-01-01	250.806180808984
1991-04-01	282.368429050924
1991-07-01	252.321620777317
1991-10-01	240.835790593023
1992-01-01	218.909368872957
1992-04-01	256.008543701241
1992-07-01	250.545942015619
1992-10-01	302.433224808908
1993-01-01	391.611076368405
1993-04-01	318.245505897461
1993-07-01	409.452904003445
1993-10-01	376.788885756733
1994-01-01	361.844828724527
1994-04-01	414.185017045450
1994-07-01	426.861758547328
1994-10-01	393.168257484273
1995-01-01	445.206343292139
1995-04-01	430.721479026904
1995-07-01	369.502210370194
1995-10-01	365.013120473550
1996-01-01	379.231021378423
1996-04-01	370.691646535638
1996-07-01	367.012079254646
1996-10-01	419.371382695578
1997-01-01	409.335758786218
1997-04-01	353.312670328890
1997-07-01	338.660382052288
1997-10-01	342.388584923328
1998-01-01	310.956356497805
1998-04-01	322.939117138154
1998-07-01	439.226870159846
1998-10-01	592.587683020004
1999-01-01	506.205186370640
1999-04-01	504.792046587742
1999-07-01	565.384038990133
1999-10-01	662.120438642107
2000-01-01	727.890906750792
2000-04-01	747.506044934211
2000-07-01	702.992378617110
2000-10-01	670.048776584403
2001-01-01	670.712808130626
2001-04-01	576.926842583702
2001-07-01	561.133630196294
2001-10-01	487.441963585341
2002-01-01	508.819401753706
2002-04-01	530.409579210640
2002-07-01	532.041506004678
2002-10-01	523.920514020177
2003-01-01	556.075359885618
2003-04-01	509.911009537181
2003-07-01	520.058643568507
2003-10-01	535.468919328183
2004-01-01	543.561648424189
2004-04-01	559.821138645962
2004-07-01	574.231574001306
2004-10-01	588.994044383373
2005-01-01	558.785480245383
2005-04-01	603.868367292541
2005-07-01	586.276355805119
2005-10-01	585.435136882987
2006-01-01	620.658079768125
2006-04-01	581.627028290528
2006-07-01	552.303578128189
2006-10-01	479.960839194078
2007-01-01	471.639571032599
2007-04-01	463.270946491142
2007-07-01	444.002102914291
2007-10-01	490.421119671984
2008-01-01	523.878810456085
2008-04-01	502.868077485356
2008-07-01	476.508633015980
2008-10-01	431.207799658637
2009-01-01	442.138587265481
2009-04-01	456.545644797044
2009-07-01	522.154697938857
2009-10-01	514.035029135181
2010-01-01	570.560227532646
2010-04-01	500.589150014008
2010-07-01	436.135658007728
2010-10-01	457.277353002546
2011-01-01	481.053372832953
2011-04-01	486.726651502477
2011-07-01	481.280148150459
2011-10-01	498.231445742862
2012-01-01	504.795636348103
2012-04-01	478.800033411574
2012-07-01	452.693926719680
2012-10-01	456.737665583570
2013-01-01	454.087957812764
2013-04-01	448.097470083177
2013-07-01	470.611382565196
2013-10-01	460.563755243726
2014-01-01	471.868900408787
2014-04-01	486.373585399930
2014-07-01	495.793942802566
2014-10-01	476.808826220408
2015-01-01	564.496550246500
2015-04-01	569.116246649788
2015-07-01	506.902611767593
2015-10-01	483.292420706796
2016-01-01	440.928483705943
2016-04-01	443.320149704618
2016-07-01	437.397057170707
2016-10-01	450.204870294761
2017-01-01	469.398592277464
2017-04-01	427.561735023388
2017-07-01	430.622116992407
2017-10-01	459.760040304202
2018-01-01	483.520714299383
2018-04-01	513.707409360948
2018-07-01	570.660573659413