Month	Net Percent, Seasonally Adjusted
1998-01-01	38.2
1998-02-01	38.4
1998-03-01	38.8
1998-04-01	44.7
1998-05-01	40.7
1998-06-01	40.8
1998-07-01	38.6
1998-08-01	41.8
1998-09-01	45.5
1998-10-01	43.8
1998-11-01	40.9
1998-12-01	41.3
1999-01-01	44.9
1999-02-01	36.1
1999-03-01	37.7
1999-04-01	50.3
1999-05-01	47.1
1999-06-01	42.3
1999-07-01	49
1999-08-01	42.7
1999-09-01	46.4
1999-10-01	41.8
1999-11-01	52.4
1999-12-01	49.5
2000-01-01	41.1
2000-02-01	52
2000-03-01	47.9
2000-04-01	36.1
2000-05-01	39.4
2000-06-01	43.9
2000-07-01	41.9
2000-08-01	45.6
2000-09-01	41.5
2000-10-01	47.3
2000-11-01	41.3
2000-12-01	42.2
2001-01-01	39
2001-02-01	38
2001-03-01	38
2001-04-01	26.1
2001-05-01	33.6
2001-06-01	33
2001-07-01	32.7
2001-08-01	25.4
2001-09-01	15.5
2001-10-01	7.9
2001-11-01	4.0
2001-12-01	4.8
2002-01-01	8.1
2002-02-01	16
2002-03-01	21.3
2002-04-01	17.8
2002-05-01	9.0
2002-06-01	5.1
2002-07-01	-10.9
2002-08-01	-5.1
2002-09-01	-3.9
2002-10-01	5.0
2002-11-01	-4.2
2002-12-01	-11.9
2003-01-01	-1.1
2003-02-01	-4.6
2003-03-01	-10.2
2003-04-01	-7.8
2003-05-01	-15.8
2003-06-01	-5
2003-07-01	-12.3
2003-08-01	-9.8
2003-09-01	-6.7
2003-10-01	-13.7
2003-11-01	2.4
2003-12-01	-1.7
2004-01-01	-1.8
2004-02-01	-7.5
2004-03-01	-1.7
2004-04-01	-2.5
2004-05-01	-0.7
2004-06-01	-10.4
2004-07-01	1.6
2004-08-01	1.8
2004-09-01	-11.2
2004-10-01	-0.9
2004-11-01	-14.7
2004-12-01	10.9
2005-01-01	-4.2
2005-02-01	-10.3
2005-03-01	-7.1
2005-04-01	3.9
2005-05-01	-1.6
2005-06-01	-19.8
2005-07-01	15.3
2005-08-01	-9.9
2005-09-01	4.7
2005-10-01	12
2005-11-01	17.4
2005-12-01	15.3
2006-01-01	22.2
2006-02-01	19.3
2006-03-01	16.1
2006-04-01	8.6
2006-05-01	15
2006-06-01	28.7
2006-07-01	25
2006-08-01	22.2
2006-09-01	22.1
2006-10-01	21.1
2006-11-01	23.3
2006-12-01	22.6
2007-01-01	8.2
2007-02-01	8.4
2007-03-01	17.8
2007-04-01	8.6
2007-05-01	12.7
2007-06-01	20.3
2007-07-01	-3.8
2007-08-01	20.9
2007-09-01	16.3
2007-10-01	15
2007-11-01	9.2
2007-12-01	3.6
2008-01-01	4.4
2008-02-01	-3.9
2008-03-01	-14.8
2008-04-01	-1.2