PERIOD	VALUE
1991-01	1616
1991-02	2836
1991-03	3779
1991-04	4165
1991-05	4397
1991-06	4569
1991-07	4738
1991-08	4886
1991-09	5011
1991-10	5144
1991-11	5254
1991-12	5138
1992-01	6133
1992-02	6959
1992-03	7609
1992-04	8001
1992-05	8242
1992-06	8460
1992-07	8670
1992-08	8869
1992-09	9057
1992-10	9054
1992-11	9432
1992-12	9832
1993-01	10874
1993-02	11712
1993-03	12402
1993-04	12818
1993-05	13070
1993-06	13265
1993-07	13474
1993-08	13664
1993-09	13836
1993-10	14020
1993-11	14213
1993-12	14646
1994-01	15681
1994-02	16474
1994-03	17144
1994-04	17541
1994-05	17783
1994-06	17973
1994-07	18140
1994-08	18308
1994-09	18471
1994-10	18643
1994-11	18838
1994-12	19335
1995-01	19943
1995-02	20540
1995-03	20978
1995-04	21255
1995-05	21454
1995-06	21619
1995-07	21768
1995-08	20921
1995-09	21080
1995-10	21257
1995-11	21455
1995-12	22019
1996-01	20385
1996-02	19771
1996-03	18875
1996-04	19127
1996-05	19197
1996-06	19234
1996-07	19286
1996-08	18178
1996-09	18226
1996-10	18242
1996-11	18313
1996-12	18407
1997-01	18638
1997-02	18684
1997-03	18680
1997-04	16904
1997-05	16940
1997-06	11111
1997-07	8718
1997-08	8785
1997-09	8852
1997-10	8261
1997-11	8353
1997-12	8525
1998-01	8718
1998-02	8885
1998-03	9115
1998-04	9281
1998-05	9399
1998-06	9526
1998-07	9641
1998-08	9729
1998-09	9768
1998-10	9867
1998-11	9966
1998-12	10175
1999-01	10470
1999-02	10714
1999-03	11151
1999-04	10562
1999-05	10590
1999-06	10640
1999-07	10680
1999-08	10709
1999-09	10744
1999-10	10767
1999-11	10792
1999-12	10922
2000-01	11027
2000-02	11087
2000-03	11234
2000-04	11304
2000-05	11336
2000-06	11378
2000-07	11402
2000-08	11422
2000-09	11428
2000-10	11419
2000-11	11447
2000-12	9182
2001-01	8117
2001-02	7178
2001-03	6517
2001-04	6133
2001-05	5839
2001-06	5685
2001-07	5552
2001-08	5432
2001-09	5345
2001-10	5236
2001-11	5157
2001-12	5114
2002-01	4986
2002-02	4806
2002-03	4635
2002-04	4498
2002-05	4355
2002-06	4155
2002-07	3991
2002-08	3834
2002-09	3697
2002-10	3523
2002-11	3366
2002-12	3311
2003-01	3164
2003-02	2961
2003-03	2716
2003-04	2577
2003-05	2464
2003-06	2365
2003-07	2259
2003-08	2133
2003-09	1997
2003-10	1839
2003-11	1707
2003-12	1624
2004-01	1436
2004-02	1156
2004-03	86
2004-04	0
2004-05	0
2004-06	0
2004-07	0
2004-08	0
2004-09	0
2004-10	0
2004-11	0
2004-12	0
2005-01	0
2005-02	0
2005-03	0
2005-04	0
2005-05	0
2005-06	0
2005-07	0
2005-08	0
2005-09	0
2005-10	0
2005-11	0
2005-12	0
2006-01	0
2006-02	0
2006-03	0
2006-04	0
2006-05	0
2006-06	0
2006-07	0
2006-08	0
2006-09	0
2006-10	0
2006-11	0
2006-12	0
2007-01	0
2007-02	0
2007-03	0
2007-04	0
2007-05	0
2007-06	0
2007-07	0
2007-08	0
2007-09	0
2007-10	0
2007-11	0
2007-12	0