Quarterly Thousands, Seasonally adjusted
1991-03-31 33000
1991-06-30 31000
1991-09-30 7000
1991-12-31 12000
1992-03-31 10000
1992-06-30 10000
1992-09-30 10000
1992-12-31 8000
1993-03-31 7000
1993-06-30 9367
1993-09-30 8100
1993-12-31 9543
1994-03-31 19823
1994-06-30 13321
1994-09-30 8114
1994-12-31 11835
1995-03-31 12836
1995-06-30 11384
1995-09-30 12345
1995-12-31 14178
1996-03-31 17933
1996-06-30 11787
1996-09-30 15993
1996-12-31 18836
1997-03-31 26155
1997-06-30 33973
1997-09-30 25546
1997-12-31 29937
1998-03-31 34289
1998-06-30 31501
1998-09-30 30586
1998-12-31 31275
1999-03-31 18689
1999-06-30 18847
1999-09-30 22581
1999-12-31 21831
2000-03-31 18046
2000-06-30 19300
2000-09-30 16847
2000-12-31 13405
2001-03-31 15995
2001-06-30 17097
2001-09-30 18207
2001-12-31 15692
2002-03-31 17897
2002-06-30 25077
2002-09-30 31438
2002-12-31 37239
2003-03-31 41037
2003-06-30 41858
2003-09-30 52922
2003-12-31 66643
2004-03-31 63736
2004-06-30 59666
2004-09-30 44728
2004-12-31 35590
2005-03-31 37231
2005-06-30 54069
2005-09-30 50393
2005-12-31 67376
2006-03-31 71342
2006-06-30 66036
2006-09-30 72716
2006-12-31 81823
2007-03-31 74738
2007-06-30 74361
2007-09-30 72990
2007-12-31 43489
2008-03-31 25810
2008-06-30 11357
2008-09-30 5323
2008-12-31 3435
2009-03-31 5978
2009-06-30 5909
2009-09-30 5678
2009-12-31 6233
2010-03-31 7335
2010-06-30 9707
2010-09-30 12442
2010-12-31 14231
2011-03-31 14812
2011-06-30 15446
2011-09-30 15829
2011-12-31 14996
2012-03-31 12477
2012-06-30 10717
2012-09-30 9429
2012-12-31 10905
2013-03-31 9713
2013-06-30 11505
2013-09-30 12078
2013-12-31 11628
2014-03-31 12802
2014-06-30 14315
2014-09-30 13394
2014-12-31 12976
2015-03-31 13675
2015-06-30 11827
2015-09-30 11545
2015-12-31 11960
2016-03-31 12444
2016-06-30 8292
2016-09-30 6969
2016-12-31 8000
2017-03-31 7260
2017-06-30 8100
2017-09-30 9641
2017-12-31 8117
2018-03-31 9222
2018-06-30 10719
2018-09-30 9697
2018-12-31 9988
2019-03-31 8763
2019-06-30 9463
2019-09-30 8980
2019-12-31 8849
2020-03-31 9684
2020-06-30 4097
2020-09-30 13347
2020-12-31 18449
2021-03-31 18584
2021-06-30 20296
2021-09-30 13212
2021-12-31 10934
2022-03-31 10551
2022-06-30 10636
2022-09-30 8811
2022-12-31 5964
2023-03-31 7333
2023-06-30 7585
2023-09-30 8943
2023-12-31 7911