Month	Thousands
1993-04-30	50000
1993-05-31	50000
1993-06-30	58000
1993-07-31	52000
1993-08-31	46000
1993-09-30	47000
1993-10-31	48000
1993-11-30	51000
1993-12-31	38000
1994-01-31	32000
1994-02-28	50000
1994-03-31	65000
1994-04-30	54000
1994-05-31	57000
1994-06-30	60000
1994-07-31	54000
1994-08-31	47000
1994-09-30	49000
1994-10-31	47000
1994-11-30	50000
1994-12-31	37000
1995-01-31	30000
1995-02-28	41000
1995-03-31	53000
1995-04-30	44000
1995-05-31	47000
1995-06-30	50000
1995-07-31	43000
1995-08-31	40000
1995-09-30	39000
1995-10-31	43000
1995-11-30	48000
1995-12-31	35000
1996-01-31	33000
1996-02-29	42000
1996-03-31	52000
1996-04-30	47000
1996-05-31	55000
1996-06-30	56000
1996-07-31	58000
1996-08-31	50000
1996-09-30	51000
1996-10-31	57000
1996-11-30	53000
1996-12-31	35000
1997-01-31	32000
1997-02-28	41000
1997-03-31	49000
1997-04-30	52000
1997-05-31	50000
1997-06-30	36000
1997-07-31	33000
1997-08-31	27000
1997-09-30	25000
1997-10-31	20000
1997-11-30	17000
1997-12-31	14000
1998-01-31	13000
1998-02-28	20000
1998-03-31	23000
1998-04-30	20000
1998-05-31	20000
1998-06-30	26000
1998-07-31	26000
1998-08-31	19000
1998-09-30	19000
1998-10-31	16000
1998-11-30	14000
1998-12-31	14000
1999-01-31	15000
1999-02-28	21000
1999-03-31	31000
1999-04-30	33000
1999-05-31	31000
1999-06-30	32000
1999-07-31	30000
1999-08-31	27000
1999-09-30	25000
1999-10-31	20000
1999-11-30	23000
1999-12-31	16000
2000-01-31	10000
2000-02-29	21000
2000-03-31	31000
2000-04-30	25000
2000-05-31	28000
2000-06-30	33000
2000-07-31	29000
2000-08-31	30000
2000-09-30	31000
2000-10-31	26000
2000-11-30	25000
2000-12-31	22000
2001-01-31	17214
2001-02-28	21630
2001-03-31	24917
2001-04-30	17815
2001-05-31	20350
2001-06-30	18900
2001-07-31	18790
2001-08-31	19372
2001-09-30	16357
2001-10-31	18100
2001-11-30	18563
2001-12-31	12655
2002-01-31	13720
2002-02-28	18708
2002-03-31	22379
2002-04-30	26005
2002-05-31	27441
2002-06-30	20749
2002-07-31	24744
2002-08-31	20100
2002-09-30	17328
2002-10-31	22898
2002-11-30	18761
2002-12-31	13620
2003-01-31	11956
2003-02-28	13601
2003-03-31	17698
2003-04-30	15425
2003-05-31	16807
2003-06-30	18768
2003-07-31	17705
2003-08-31	16299
2003-09-30	19524
2003-10-31	18819
2003-11-30	15919
2003-12-31	12839
2004-01-31	10747
2004-02-29	15023
2004-03-31	22086
2004-04-30	18035
2004-05-31	19113
2004-06-30	20024
2004-07-31	16070
2004-08-31	10250
2004-09-30	9601
2004-10-31	11354
2004-11-30	11968
2004-12-31	9271
2005-01-31	7531
2005-02-28	13051
2005-03-31	19555
2005-04-30	17853
2005-05-31	17212
2005-06-30	17774
2005-07-31	16311
2005-08-31	14919
2005-09-30	14028
2005-10-31	13995
2005-11-30	16060
2005-12-31	12448
2006-01-31	10706
2006-02-28	15283
2006-03-31	24882
2006-04-30	19599
2006-05-31	25690
2006-06-30	28143
2006-07-31	24710
2006-08-31	24236
2006-09-30	21622
2006-10-31	19945
2006-11-30	17735
2006-12-31	13890
2007-01-31	15269
2007-02-28	19284
2007-03-31	26465
2007-04-30	19451
2007-05-31	24208
2007-06-30	22124
2007-07-31	21061
2007-08-31	20752
2007-09-30	18194
2007-10-31	19104
2007-11-30	17279
2007-12-31	9907
2008-01-31	9457
2008-02-29	11480
2008-03-31	10343
2008-04-30	11617
2008-05-31	8617
2008-06-30	9118
2008-07-31	8976
2008-08-31	8438
2008-09-30	7406
2008-10-31	7347
2008-11-30	6095
2008-12-31	4092
2009-01-31	2518
2009-02-28	5149
2009-03-31	9264
2009-04-30	9694
2009-05-31	9931
2009-06-30	10920
2009-07-31	9946
2009-08-31	8184
2009-09-30	10105
2009-10-31	10539
2009-11-30	10055
2009-12-31	7320