Quarter	Units, Seasonally Adjusted
1972-10-01	1234974036.1293700
1973-01-01	1110553896.8729500
1973-04-01	1152761904.4157700
1973-07-01	1152504478.4280100
1973-10-01	1289571922.9709501
1974-01-01	1366666987.1887600
1974-04-01	1467156922.0755100
1974-07-01	1467516913.5718799
1974-10-01	1359205909.1387300
1975-01-01	1459862004.7540700
1975-04-01	1285256900.0952200
1975-07-01	1400957232.8982900
1975-10-01	1401086650.7723498
1976-01-01	1493684536.3612099
1976-04-01	1461237431.7583600
1976-07-01	1559223530.8921400
1976-10-01	1565362188.7987400
1977-01-01	1667601864.0219700
1977-04-01	1571669911.8951101
1977-07-01	1630762518.3829000
1977-10-01	1602117156.7359700
1978-01-01	1544745889.9859800
1978-04-01	1688240219.0640700
1978-07-01	1603812450.7661800
1978-10-01	1799805321.2025600
1979-01-01	1810583754.0543602
1979-04-01	1827563581.3561301
1979-07-01	2010254784.3138900
1979-10-01	1987051808.3106000
1980-01-01	1970590778.2042300
1980-04-01	1986537675.8452300
1980-07-01	1974278499.7201200
1980-10-01	2084471348.3832703
1981-01-01	2126354560.7889300
1981-04-01	2367538257.1194200
1981-07-01	2295627331.6078300
1981-10-01	2287471765.4811100
1982-01-01	2309700367.0845103
1982-04-01	2111498167.3720899
1982-07-01	2126413125.3117497
1982-10-01	2224086539.4449500
1983-01-01	2155735362.8911800
1983-04-01	2232667587.9993300
1983-07-01	2333642626.5316900
1983-10-01	2483149116.6242400
1984-01-01	2420602711.3776298
1984-04-01	2397235053.3458900
1984-07-01	2611413902.2174200
1984-10-01	2655568587.8552300
1985-01-01	2719927648.3670300
1985-04-01	2695559716.5640400
1985-07-01	2676056295.1468200
1985-10-01	2718415945.5873800
1986-01-01	2709491689.6472900
1986-04-01	2645704354.8445500
1986-07-01	2601931052.0647800
1986-10-01	2581317504.7414603
1987-01-01	2608292153.8592200
1987-04-01	2673953568.7283200
1987-07-01	2811095954.8846197
1987-10-01	2881582468.9568000
1988-01-01	2786317301.4230500
1988-04-01	2990809253.6494900
1988-07-01	3129464667.9983997
1988-10-01	3211451065.4676900
1989-01-01	3265981051.5710400
1989-04-01	3369022082.2556400
1989-07-01	3310219696.7861800
1989-10-01	3382733472.5440300
1990-01-01	3494805153.2799400
1990-04-01	3346897271.6917900
1990-07-01	3395627624.7295700
1990-10-01	3516182776.5557200
1991-01-01	3481386649.8969603
1991-04-01	3397558188.1783200
1991-07-01	3433125262.8091000
1991-10-01	3491463292.8918300
1992-01-01	3579602026.4315100
1992-04-01	3541632421.6588600
1992-07-01	3461289966.1792800
1992-10-01	3377311317.9416000
1993-01-01	3398304031.8071600
1993-04-01	3510789601.4480796
1993-07-01	3593288079.1747600
1993-10-01	3373618059.8952303
1994-01-01	3724016855.0452500
1994-04-01	4033416686.5617800
1994-07-01	4059608947.8809700
1994-10-01	4240607985.8340797
1995-01-01	4161865175.1962900
1995-04-01	4020529563.5034000
1995-07-01	3975979193.9402600
1995-10-01	4074532868.1522703
1996-01-01	3741044990.8408500
1996-04-01	3642770435.0650500
1996-07-01	3682620661.4011197
1996-10-01	3830498952.7335300
1997-01-01	3885652752.3412400
1997-04-01	4014043071.8837500
1997-07-01	4187398009.9001603
1997-10-01	4280012645.3931700
1998-01-01	4253460936.4586506
1998-04-01	4167773999.9343204
1998-07-01	4161288684.2259803
1998-10-01	4026656923.1507900
1999-01-01	4116049449.6384300
1999-04-01	4351126870.4632100
1999-07-01	4418241941.8716000
1999-10-01	4554694860.8039000
2000-01-01	4698431278.6182100
2000-04-01	4981626169.2689010
2000-07-01	5060583770.0571600
2000-10-01	5155785249.4169200
2001-01-01	4984851700.1217190
2001-04-01	4941700064.8916600
2001-07-01	5000893679.3877700
2001-10-01	5398689241.7809800
2002-01-01	5008059037.6102200
2002-04-01	5050242695.6919500
2002-07-01	4782922418.3730310
2002-10-01	4971350985.5187410
2003-01-01	4945915700.5276800
2003-04-01	4842595123.4669000
2003-07-01	5105971950.5209290
2003-10-01	5283806125.5094795
2004-01-01	5548975005.4544000
2004-04-01	6088415306.6508490
2004-07-01	5949509327.5972100
2004-10-01	5901027306.2284390
2005-01-01	6214549272.5418700
2005-04-01	6204052591.6494400
2005-07-01	6382899787.3676195
2005-10-01	6769661477.5236410
2006-01-01	6975390919.2199800
2006-04-01	7406062452.6257400
2006-07-01	7172362777.6979900
2006-10-01	7685928862.6579200
2007-01-01	7679345753.0220200
2007-04-01	7539279163.2678100
2007-07-01	7763787460.8635010
2007-10-01	7778853864.3708900
2008-01-01	9996805419.8814500
2008-04-01	9901636740.5060600
2008-07-01	10126647990.5413000
2008-10-01	8276021807.8261200
2009-01-01	7426895700.8880400
2009-04-01	7632563446.8587600
2009-07-01	8214376415.2617290
2009-10-01	8465265024.8381910
2010-01-01	8496804948.2836200
2010-04-01	9053269177.3859000
2010-07-01	9179448824.5714600
2010-10-01	9857087470.4979700
2011-01-01	10184774704.8046000
2011-04-01	10040812782.6722000
2011-07-01	9843663734.5500700
2011-10-01	9789051913.6820200
2012-01-01	10161167259.4615000
2012-04-01	10309479095.0604000
2012-07-01	10001244590.7534000
2012-10-01	9891690827.0053600
2013-01-01	10364310258.0943000
2013-04-01	10032972821.1449000
2013-07-01	10186805471.8853000
2013-10-01	10438414969.7555000
2014-01-01	10313541991.6950000
2014-04-01	10152793494.9818000
2014-07-01	10203633410.3808000
2014-10-01	10091339494.4470000
2015-01-01	10259264245.4556000
2015-04-01	10338251346.7919000
2015-07-01	10629347696.3121990
2015-10-01	10772620099.2215000
2016-01-01	10279449349.4755000
2016-04-01	10606483281.2034000
2016-07-01	10651969225.6624010
2016-10-01	11432393845.6073000
2017-01-01	11350512112.9935990
2017-04-01	11719964445.9497000
2017-07-01	11980310085.2357000
2017-10-01	12384519748.2866000
2018-01-01	13164450072.8883000
2018-04-01	12763983538.2223000