Month	Thousands
1997-10-31	22131
1997-11-30	20106
1997-12-31	17228
1998-01-31	18013
1998-02-28	22707
1998-03-31	24068
1998-04-30	23575
1998-05-31	24045
1998-06-30	27540
1998-07-31	29959
1998-08-31	25697
1998-09-30	28302
1998-10-31	32640
1998-11-30	31625
1998-12-31	24831
1999-01-31	26930
1999-02-28	36392
1999-03-31	47717
1999-04-30	41193
1999-05-31	38526
1999-06-30	46593
1999-07-31	44688
1999-08-31	42735
1999-09-30	45567
1999-10-31	42472
1999-11-30	43719
1999-12-31	31450
2000-01-31	27673
2000-02-29	38425
2000-03-31	47678
2000-04-30	37105
2000-05-31	42645
2000-06-30	55503
2000-07-31	55498
2000-08-31	50260
2000-09-30	45976
2000-10-31	47913
2000-11-30	48826
2000-12-31	41469
2001-01-31	52350
2001-02-28	56583
2001-03-31	70140
2001-04-30	62581
2001-05-31	68549
2001-06-30	73230
2001-07-31	73174
2001-08-31	72912
2001-09-30	66764
2001-10-31	77859
2001-11-30	76901
2001-12-31	54722
2002-01-31	68075
2002-02-28	71214
2002-03-31	83401
2002-04-30	90295
2002-05-31	100321
2002-06-30	78006
2002-07-31	97354
2002-08-31	93297
2002-09-30	97970
2002-10-31	110229
2002-11-30	102659
2002-12-31	80456
2003-01-31	94888
2003-02-28	104014
2003-03-31	121989
2003-04-30	109845
2003-05-31	115478
2003-06-30	122971
2003-07-31	129156
2003-08-31	116395
2003-09-30	125020
2003-10-31	131649
2003-11-30	106169
2003-12-31	85674
2004-01-31	88908
2004-02-29	104720
2004-03-31	123574
2004-04-30	103424
2004-05-31	101982
2004-06-30	105376
2004-07-31	102523
2004-08-31	95268
2004-09-30	96568
2004-10-31	79839
2004-11-30	78790
2004-12-31	62053
2005-01-31	66917
2005-02-28	77756
2005-03-31	84032
2005-04-30	86307
2005-05-31	82253
2005-06-30	84637
2005-07-31	76623
2005-08-31	82955
2005-09-30	84639
2005-10-31	78915
2005-11-30	79263
2005-12-31	59145
2006-01-31	69027
2006-02-28	72829
2006-03-31	85685
2006-04-30	68018
2006-05-31	78971
2006-06-30	84189
2006-07-31	74867
2006-08-31	82514
2006-09-30	78309
2006-10-31	79583
2006-11-30	81620
2006-12-31	54556
2007-01-31	74900
2007-02-28	72944
2007-03-31	81078
2007-04-30	69601
2007-05-31	79700
2007-06-30	75191
2007-07-31	74513
2007-08-31	69244
2007-09-30	64945
2007-10-31	64720
2007-11-30	61433
2007-12-31	39388
2008-01-31	53790
2008-02-29	61630
2008-03-31	50918
2008-04-30	52696
2008-05-31	45670
2008-06-30	44742
2008-07-31	47141
2008-08-31	37951
2008-09-30	39269
2008-10-31	35650
2008-11-30	29076
2008-12-31	24761
2009-01-31	30357
2009-02-28	31857
2009-03-31	33713
2009-04-30	27881
2009-05-31	28079
2009-06-30	32527
2009-07-31	30722
2009-08-31	25268
2009-09-30	30235
2009-10-31	29523
2009-11-30	26865
2009-12-31	20220
2010-01-31	20029
2010-02-28	25697
2010-03-31	30027
2010-04-30	24744
2010-05-31	23995
2010-06-30	27512
2010-07-31	25848
2010-08-31	24063
2010-09-30	25361
2010-10-31	23224
2010-11-30	22897
2010-12-31	15237
2011-01-31	17130
2011-02-28	20330
2011-03-31	23701
2011-04-30	18621
2011-05-31	21018
2011-06-30	22558
2011-07-31	20886
2011-08-31	22435
2011-09-30	22323
2011-10-31	20949
2011-11-30	21539
2011-12-31	15313
2012-01-31	16982
2012-02-29	19575
2012-03-31	20555
2012-04-30	17082
2012-05-31	19143
2012-06-30	16032
2012-07-31	16639
2012-08-31	16471
2012-09-30	15924
2012-10-31	16480
2012-11-30	14969
2012-12-31	10443
2013-01-31	12360
2013-02-28	12602
2013-03-31	13095
2013-04-30	13433
2013-05-31	14263
2013-06-30	13355
2013-07-31	14299
2013-08-31	13264
2013-09-30	13041
2013-10-31	14380
2013-11-30	13380
2013-12-31	10218
2014-01-31	12107
2014-02-28	12356
2014-03-31	13134
2014-04-30	11846
2014-05-31	9365
2014-06-30	10569
2014-07-31	12057
2014-08-31	9581
2014-09-30	9914
2014-10-31	10203
2014-11-30	9117
2014-12-31	8115
2015-01-31	7933
2015-02-28	9145
2015-03-31	10807
2015-04-30	10900
2015-05-31	10988
2015-06-30	12315
2015-07-31	12422
2015-08-31	11805
2015-09-30	13129
2015-10-31	13104
2015-11-30	12414
2015-12-31	10318
2016-01-31	10254
2016-02-29	13099
2016-03-31	14183
2016-04-30	13855
2016-05-31	13409
2016-06-30	13737
2016-07-31	13070
2016-08-31	13203
2016-09-30	14447
2016-10-31	13986
2016-11-30	14293
2016-12-31	10693
2017-01-31	12043
2017-02-28	13386
2017-03-31	15820
2017-04-30	12583
2017-05-31	14750
2017-06-30	14914
2017-07-31	15664
2017-08-31	14575
2017-09-30	14029
2017-10-31	14603
2017-11-30	14793
2017-12-31	10439
2018-01-31	12152
2018-02-28	13160
2018-03-31	14439
2018-04-30	13404
2018-05-31	14239
2018-06-30	15098
2018-07-31	17167
2018-08-31	15419
2018-09-30	14711
2018-10-31	15521
2018-11-30	15189
2018-12-31	9715
2019-01-31	13521
2019-02-28	13794
2019-03-31	15187
2019-04-30	14059
2019-05-31	15636
2019-06-30	14670
2019-07-31	15952
2019-08-31	14837
2019-09-30	14880
2019-10-31	15856
2019-11-30	13553
2019-12-31	11021
2020-01-31	12674
2020-02-29	14098
2020-03-31	13122
2020-04-30	6005
2020-05-31	5619
2020-06-30	9179
2020-07-31	11656
2020-08-31	11269
2020-09-30	13403
2020-10-31	13587
2020-11-30	12699
2020-12-31	11691
2021-01-31	11329
2021-02-28	12835
2021-03-31	16583
2021-04-30	13481
2021-05-31	13397
2021-06-30	14784
2021-07-31	14733
2021-08-31	13541
2021-09-30	14098
2021-10-31	14095
2021-11-30	15157
2021-12-31	12436
2022-01-31	14441
2022-02-28	16073
2022-03-31	17512
2022-04-30	14040
2022-05-31	14792
2022-06-30	15017
2022-07-31	15829
2022-08-31	14889
2022-09-30	13311
2022-10-31	11815
2022-11-30	8321
2022-12-31	4975
2023-01-31	5478
2023-02-28	7339
2023-03-31	9160
2023-04-30	7615
2023-05-31	8904
2023-06-30	10202
2023-07-31	8726
2023-08-31	7317
2023-09-30	6593
2023-10-31	6575
2023-11-30	7361
2023-12-31	5337