Quarter	Units, Seasonally Adjusted
1992-01-01	3576.89020603600
1992-04-01	4461.16814553763
1992-07-01	4441.74993646890
1992-10-01	5355.03869640864
1993-01-01	4699.34901607787
1993-04-01	5204.33797289184
1993-07-01	4271.38115177266
1993-10-01	4727.11077777071
1994-01-01	4527.53436492926
1994-04-01	4526.13581996937
1994-07-01	5605.96104786486
1994-10-01	5369.71581932063
1995-01-01	6198.81871174989
1995-04-01	5829.18171276669
1995-07-01	6005.74501342480
1995-10-01	4923.52051669086
1996-01-01	7005.18040178740
1996-04-01	6925.58576064606
1996-07-01	7697.29432141884
1996-10-01	7926.49837030352
1997-01-01	6430.85339381873
1997-04-01	9214.78620326483
1997-07-01	6453.83894562514
1997-10-01	7851.35390808276
1998-01-01	8774.18184964063
1998-04-01	9409.05029295294
1998-07-01	11466.93760762850
1998-10-01	10085.93423646640
1999-01-01	14055.82352967360
1999-04-01	14381.22789716980
1999-07-01	16238.88992422430
1999-10-01	19098.50127236040
2000-01-01	17357.91069470550
2000-04-01	18596.33314123750
2000-07-01	18596.41781765750
2000-10-01	19123.73865537620
2001-01-01	17127.17722723820
2001-04-01	15375.99757835290
2001-07-01	13892.79810277230
2001-10-01	14385.33140031860
2002-01-01	12773.30690228540
2002-04-01	14163.55761192020
2002-07-01	13125.46171832660
2002-10-01	10827.72228830150
2003-01-01	10044.54224854390
2003-04-01	11999.48796086470
2003-07-01	14128.71133328440
2003-10-01	13542.95190790790
2004-01-01	17748.98879445060
2004-04-01	16923.98704495970
2004-07-01	16991.47012497250
2004-10-01	18251.13766304390
2005-01-01	19284.44693101960
2005-04-01	19925.87612230320
2005-07-01	18277.90836796790
2005-10-01	18188.41931000820
2006-01-01	16430.12592621080
2006-04-01	13718.46839643340
2006-07-01	15708.10003078770
2006-10-01	14351.85471187600
2007-01-01	15293.74472446290
2007-04-01	16849.54408504360
2007-07-01	16095.35385995210
2007-10-01	14527.80985199040
2008-01-01	12738.62720077470
2008-04-01	11811.78264697900
2008-07-01	11754.96177910160
2008-10-01	11474.76236121070
2009-01-01	9658.04939702404
2009-04-01	7396.33630399342
2009-07-01	5451.30945699102
2009-10-01	3815.30143626112
2010-01-01	3327.69802601631
2010-04-01	2959.31312831029
2010-07-01	2875.79790248060
2010-10-01	2348.34829526327
2011-01-01	2836.66815146949
2011-04-01	2577.37953067014
2011-07-01	1921.03368788710
2011-10-01	1651.86300608078
2012-01-01	1163.62464902759
2012-04-01	1167.08336614212
2012-07-01	1581.45158240877
2012-10-01	1484.64595826095
2013-01-01	1737.60512130299
2013-04-01	1507.27797077367
2013-07-01	1282.55383365032
2013-10-01	1435.11912354018
2014-01-01	1366.62832467723
2014-04-01	1502.68261125585
2014-07-01	1836.19944826419
2014-10-01	1923.94720717546
2015-01-01	2412.18037330322
2015-04-01	2660.06734322115
2015-07-01	2396.21964296137
2015-10-01	2777.54227612481
2016-01-01	2446.97610871604
2016-04-01	2353.87338133634
2016-07-01	4465.33438839296
2016-10-01	3243.98239191950
2017-01-01	3660.14366438282
2017-04-01	3657.22636798552
2017-07-01	3816.59516599081
2017-10-01	4307.19459374101
2018-01-01	5782.60544902075
2018-04-01	4988.17174611225