Quarter	Thousands, Seasonally adjusted
1993-06-30	-569
1993-09-30	1916
1993-12-31	1860
1994-03-31	-2139
1994-06-30	-729
1994-09-30	1858
1994-12-31	1499
1995-03-31	-2740
1995-06-30	-493
1995-09-30	1066
1995-12-31	1176
1996-03-31	-1341
1996-06-30	-210
1996-09-30	1432
1996-12-31	92
1997-03-31	115
1997-06-30	-1112
1997-09-30	750
1997-12-31	549
1998-03-31	693
1998-06-30	-911
1998-09-30	406
1998-12-31	590
1999-03-31	84
1999-06-30	-349
1999-09-30	496
1999-12-31	-223
2000-03-31	406
2000-06-30	-628
2000-09-30	-35
2000-12-31	-1040
2001-03-31	348
2001-06-30	-235
2001-09-30	-174
2001-12-31	-835
2002-03-31	546
2002-06-30	-190
2002-09-30	-38
2002-12-31	492
2003-03-31	173
2003-06-30	-1767
2003-09-30	1127
2003-12-31	1876
2004-03-31	61
2004-06-30	-2430
2004-09-30	811
2004-12-31	332
2005-03-31	1337
2005-06-30	-2748
2005-09-30	308
2005-12-31	911
2006-03-31	1816
2006-06-30	-2142
2006-09-30	21
2006-12-31	765
2007-03-31	2764
2007-06-30	-2624
2007-09-30	415
2007-12-31	-74
2008-03-31	2181
2008-06-30	-519
2008-09-30	-604
2008-12-31	-57
2009-03-31	846
2009-06-30	120
2009-09-30	-1018
2009-12-31	35
2010-03-31	818
2010-06-30	-44
2010-09-30	-693
2010-12-31	69
2011-03-31	1091
2011-06-30	-309
2011-09-30	-675
2011-12-31	64
2012-03-31	853
2012-06-30	-16
2012-09-30	-460
2012-12-31	147
2013-03-31	511
2013-06-30	-185
2013-09-30	-178
2013-12-31	35
2014-03-31	706
2014-06-30	-328
2014-09-30	-155
2014-12-31	75
2015-03-31	764
2015-06-30	-248
2015-09-30	260
2015-12-31	-87
2016-03-31	186
2016-06-30	124
2016-09-30	598
2016-12-31	-663
2017-03-31	-808
2017-06-30	360
2017-09-30	841
2017-12-31	-1051
2018-03-31	-1182
2018-06-30	883
2018-09-30	1314
2018-12-31	-1881
2019-03-31	-1997
2019-06-30	1858
2019-09-30	1990
2019-12-31	-3517
2020-03-31	-3083
2020-06-30	1134
2020-09-30	2895
2020-12-31	-7442
2021-03-31	-4788
2021-06-30	4271
2021-09-30	3215
2021-12-31	-6860
2022-03-31	-4505
2022-06-30	4730
2022-09-30	3452
2022-12-31	-5547
2023-03-31	-2579
2023-06-30	4389
2023-09-30	2616
2023-12-31	-6705