Quarter	Percent, Seasonally Adjusted
1999-01-01	64.6413067086789
1999-04-01	63.1521925264303
1999-07-01	65.3478057918746
1999-10-01	65.5828123510666
2000-01-01	61.9600759730634
2000-04-01	63.5730015703395
2000-07-01	61.6352485157394
2000-10-01	62.7601301167073
2001-01-01	64.2101348395450
2001-04-01	63.2950716136127
2001-07-01	64.0074681954986
2001-10-01	63.1754195231471
2002-01-01	61.8928833196594
2002-04-01	63.5351885290315
2002-07-01	61.6963447282265
2002-10-01	63.0297680704553
2003-01-01	64.4669241958285
2003-04-01	60.4477565427908
2003-07-01	60.7433245940764
2003-10-01	58.8257386979228
2004-01-01	59.9766696172717
2004-04-01	58.8645691686997
2004-07-01	59.3253377830583
2004-10-01	60.3794787637428
2005-01-01	57.3106922606118
2005-04-01	56.5872928519786
2005-07-01	54.8249631547603
2005-10-01	57.6509607042492
2006-01-01	57.5598736675108
2006-04-01	59.6878968022207
2006-07-01	57.7217088037814
2006-10-01	54.1943227252243
2007-01-01	53.4690595784075
2007-04-01	57.6359974385965
2007-07-01	55.5442064238378
2007-10-01	55.5589485493517
2008-01-01	55.3256889929247
2008-04-01	57.0791873081911
2008-07-01	55.1490394678731
2008-10-01	54.6664089328735
2009-01-01	55.0323591021705
2009-04-01	55.9997202652557
2009-07-01	54.5428825380462
2009-10-01	53.7861930970979
2010-01-01	53.8952426957453
2010-04-01	51.7713581071871
2010-07-01	52.6412527457380
2010-10-01	51.3532468001849
2011-01-01	53.2080001283384
2011-04-01	51.4350210397984
2011-07-01	52.4210555579907
2011-10-01	51.6435247207761
2012-01-01	52.0426776501754
2012-04-01	51.9881412369180
2012-07-01	51.7198623103009
2012-10-01	52.5681367515413
2013-01-01	50.1089474028713
2013-04-01	48.5878045707709
2013-07-01	49.0138978395383
2013-10-01	50.3389903327919
2014-01-01	49.1435074427670
2014-04-01	47.9269898793225
2014-07-01	50.6923147966330
2014-10-01	47.0621865539485
2015-01-01	48.1328195664137
2015-04-01	48.0898646335949
2015-07-01	46.7930007899329
2015-10-01	48.2765993317449
2016-01-01	48.2041635362322
2016-04-01	44.9920057611779
2016-07-01	45.9734278406342
2016-10-01	46.3760206468313
2017-01-01	44.2238908776771
2017-04-01	44.1966195295205
2017-07-01	43.6591160496000
2017-10-01	40.4668923833042
2018-01-01	41.2433856507667
2018-04-01	42.5160257275138