Month	Percent
1987-01-01	7.250000000
1987-02-01	7.250000000
1987-03-01	7.250000000
1987-04-01	7.250000000
1987-05-01	7.250000000
1987-06-01	7.250000000
1987-07-01	7.250000000
1987-08-01	7.250000000
1987-09-01	7.250000000
1987-10-01	7.000000000
1987-11-01	7.000000000
1987-12-01	7.000000000
1988-01-01	7.000000000
1988-02-01	7.000000000
1988-03-01	7.000000000
1988-04-01	6.500000000
1988-05-01	6.500000000
1988-06-01	6.500000000
1988-07-01	6.500000000
1988-08-01	6.500000000
1988-09-01	6.500000000
1988-10-01	6.750000000
1988-11-01	6.750000000
1988-12-01	6.750000000
1989-01-01	6.750000000
1989-02-01	6.750000000
1989-03-01	6.750000000
1989-04-01	7.250000000
1989-05-01	7.250000000
1989-06-01	7.250000000
1989-07-01	7.250000000
1989-08-01	7.250000000
1989-09-01	7.250000000
1989-10-01	7.250000000
1989-11-01	8.000000000
1989-12-01	8.000000000
1990-01-01	8.000000000
1990-02-01	8.250000000
1990-03-01	8.250000000
1990-04-01	8.250000000
1990-05-01	8.250000000
1990-06-01	8.250000000
1990-07-01	8.250000000
1990-08-01	8.250000000
1990-09-01	8.250000000
1990-10-01	8.250000000
1990-11-01	8.250000000
1990-12-01	8.250000000
1991-01-01	8.250000000
1991-02-01	8.250000000
1991-03-01	8.250000000
1991-04-01	8.250000000
1991-05-01	8.250000000
1991-06-01	8.250000000
1991-07-01	8.250000000
1991-08-01	8.250000000
1991-09-01	8.250000000
1991-10-01	8.250000000
1991-11-01	8.250000000
1991-12-01	8.250000000
1992-01-01	8.250000000
1992-02-01	8.250000000
1992-03-01	8.250000000
1992-04-01	8.250000000
1992-05-01	8.250000000
1992-06-01	8.250000000
1992-07-01	8.250000000
1992-08-01	8.250000000
1992-09-01	8.250000000
1992-10-01	8.250000000
1992-11-01	8.250000000
1992-12-01	8.250000000
1993-01-01	8.250000000
1993-02-01	8.250000000
1993-03-01	8.250000000
1993-04-01	7.750000000
1993-05-01	7.750000000
1993-06-01	7.750000000
1993-07-01	7.750000000
1993-08-01	7.000000000
1993-09-01	7.000000000
1993-10-01	7.000000000
1993-11-01	7.000000000
1993-12-01	7.000000000
1994-01-01	7.000000000
1994-02-01	7.000000000
1994-03-01	6.500000000
1994-04-01	6.500000000
1994-05-01	6.500000000
1994-06-01	6.500000000
1994-07-01	6.500000000
1994-08-01	6.500000000
1994-09-01	6.500000000
1994-10-01	6.500000000
1994-11-01	6.500000000
1994-12-01	6.500000000
1995-01-01	6.500000000
1995-02-01	6.500000000
1995-03-01	6.500000000
1995-04-01	6.500000000
1995-05-01	6.500000000
1995-06-01	6.500000000
1995-07-01	6.500000000
1995-08-01	6.500000000
1995-09-01	6.500000000
1995-10-01	6.500000000
1995-11-01	6.500000000
1995-12-01	6.000000000
1996-01-01	5.500000000
1996-02-01	5.500000000
1996-03-01	5.500000000
1996-04-01	5.500000000
1996-05-01	5.500000000
1996-06-01	5.500000000
1996-07-01	5.500000000
1996-08-01	5.500000000
1996-09-01	5.500000000
1996-10-01	5.500000000
1996-11-01	5.500000000
1996-12-01	5.500000000
1997-01-01	5.250000000
1997-02-01	5.250000000
1997-03-01	5.250000000
1997-04-01	5.250000000
1997-05-01	5.250000000
1997-06-01	5.250000000
1997-07-01	5.250000000
1997-08-01	5.250000000
1997-09-01	5.250000000
1997-10-01	5.250000000
1997-11-01	5.250000000
1997-12-01	5.250000000
1998-01-01	5.250000000
1998-02-01	5.250000000
1998-03-01	5.250000000
1998-04-01	5.250000000
1998-05-01	5.250000000
1998-06-01	5.250000000
1998-07-01	5.250000000
1998-08-01	5.250000000
1998-09-01	5.250000000
1998-10-01	5.250000000
1998-11-01	5.000000000
1998-12-01	5.000000000
1999-01-01	5.000000000
1999-02-01	5.000000000
1999-03-01	4.500000000
1999-04-01	4.500000000
1999-05-01	4.500000000
1999-06-01	4.500000000
1999-07-01	4.500000000
1999-08-01	4.500000000
1999-09-01	4.500000000
1999-10-01	4.500000000
1999-11-01	4.500000000
1999-12-01	5.000000000
2000-01-01	5.000000000
2000-02-01	5.000000000
2000-03-01	5.000000000
2000-04-01	5.500000000
2000-05-01	5.500000000
2000-06-01	5.500000000
2000-07-01	5.630000000
2000-08-01	5.630000000
2000-09-01	5.630000000
2000-10-01	5.630000000
2000-11-01	5.980000000
2000-12-01	5.980000000
2001-01-01	5.980000000
2001-02-01	5.980000000
2001-03-01	5.760000000
2001-04-01	5.760000000
2001-05-01	5.760000000
2001-06-01	5.350000000
2001-07-01	5.350000000
2001-08-01	5.350000000
2001-09-01	5.240000000
2001-10-01	5.240000000
2001-11-01	5.240000000
2001-12-01	4.760000000
2002-01-01	4.760000000
2002-02-01	4.760000000
2002-03-01	4.230000000
2002-04-01	4.230000000
2002-05-01	4.230000000
2002-06-01	4.510000000
2002-07-01	4.510000000
2002-08-01	4.510000000
2002-09-01	4.440000000
2002-10-01	4.440000000
2002-11-01	4.440000000
2002-12-01	4.400000000
2003-01-01	4.247100000
2003-02-01	4.162300000
2003-03-01	3.997100000
2003-04-01	3.920400000
2003-05-01	3.816400000
2003-06-01	3.881800000
2003-07-01	3.756100000
2003-08-01	3.748600000
2003-09-01	3.741400000
2003-10-01	3.532600000
2003-11-01	3.507500000
2003-12-01	3.405000000
2004-01-01	3.394400000
2004-02-01	3.415700000
2004-03-01	3.355700000
2004-04-01	3.393000000
2004-05-01	3.387300000
2004-06-01	3.375100000
2004-07-01	3.428200000
2004-08-01	3.485300000
2004-09-01	3.407100000
2004-10-01	3.383400000
2004-11-01	3.408900000
2004-12-01	3.381900000
2005-01-01	3.434500000
2005-02-01	3.452000000
2005-03-01	3.407200000
2005-04-01	3.495400000
2005-05-01	3.512600000
2005-06-01	3.500000000
2005-07-01	3.502600000
2005-08-01	3.514000000
2005-09-01	3.547600000
2005-10-01	3.572200000
2005-11-01	3.636600000
2005-12-01	3.622900000
2006-01-01	3.625100000
2006-02-01	3.691200000
2006-03-01	3.745000000
2006-04-01	3.710300000
2006-05-01	3.699100000
2006-06-01	3.853900000
2006-07-01	3.925300000
2006-08-01	3.993000000
2006-09-01	4.121000000
2006-10-01	4.272200000
2006-11-01	4.290700000
2006-12-01	4.511800000
2007-01-01	4.526800000
2007-02-01	4.626300000
2007-03-01	4.641500000
2007-04-01	4.661400000
2007-05-01	4.593700000
2007-06-01	4.692500000
2007-07-01	4.825800000
2007-08-01	4.823700000
2007-09-01	4.914800000
2007-10-01	4.931847000
2007-11-01	4.887027000
2007-12-01	4.830442000
2008-01-01	4.892352000
2008-02-01	4.900584000
2008-03-01	4.898800000
2008-04-01	4.823556000
2008-05-01	4.911473000
2008-06-01	5.028382000
2008-07-01	5.024888000
2008-08-01	5.221681000
2008-09-01	5.172514000
2008-10-01	4.889235000
2008-11-01	4.694696000
2008-12-01	4.216147000
2009-01-01	3.465300000
2009-02-01	3.042600000
2009-03-01	2.875400000
2009-04-01	2.429800000
2009-05-01	2.331900000
2009-06-01	2.115300000
2009-07-01	2.111400000
2009-08-01	2.009600000
2009-09-01	1.987600000
2009-10-01	2.057300000
2009-11-01	2.038700000
2009-12-01	2.029000000
2010-01-01	1.914400000
2010-02-01	1.985600000
2010-03-01	2.002900000
2010-04-01	1.977100000
2010-05-01	2.004000000
2010-06-01	2.023482574
2010-07-01	2.006077208
2010-08-01	2.050538620
2010-09-01	2.014831160
2010-10-01	2.011043062
2010-11-01	2.004493411
2010-12-01	1.986873746
2011-01-01	2.018980513
2011-02-01	2.006989775
2011-03-01	2.032059802
2011-04-01	2.068817556
2011-05-01	2.115479032
2011-06-01	2.229369329
2011-07-01	2.276823738
2011-08-01	2.449050877
2011-09-01	2.458993366
2011-10-01	2.488971611
2011-11-01	2.452011647
2011-12-01	2.408414912
2012-01-01	2.335794837
2012-02-01	2.250713002
2012-03-01	2.279718577
2012-04-01	2.164866715
2012-05-01	2.210854972
2012-06-01	2.207755898
2012-07-01	2.161407260
2012-08-01	2.044083391
2012-09-01	1.997322994
2012-10-01	2.029486350
2012-11-01	1.930987569
2012-12-01	2.018800959
2013-01-01	2.035439115
2013-02-01	1.963244562
2013-03-01	2.062840210
2013-04-01	2.007718666
2013-05-01	1.998077960
2013-06-01	2.055904361
2013-07-01	1.941256180
2013-08-01	1.953058161
2013-09-01	1.962555126
2013-10-01	1.950473231
2013-11-01	1.900000000
2013-12-01	1.940000000
2014-01-01	1.910000000
2014-02-01	1.850000000
2014-03-01	1.950000000
2014-04-01	1.930000000
2014-05-01	1.870000000
2014-06-01	1.850000000
2014-07-01	1.910000000
2014-08-01	1.890000000
2014-09-01	1.890000000
2014-10-01	1.830000000
2014-11-01	1.830000000
2014-12-01	1.820000000
2015-01-01	1.870000000
2015-02-01	1.840000000
2015-03-01	1.820000000
2015-04-01	1.770000000
2015-05-01	1.780000000
2015-06-01	1.760000000
2015-07-01	1.810000000
2015-08-01	1.800000000
2015-09-01	1.800000000
2015-10-01	1.790000000
2015-11-01	1.800000000
2015-12-01	1.760000000
2016-01-01	1.780000000
2016-02-01	1.800000000
2016-03-01	1.730000000
2016-04-01	1.700000000
2016-05-01	1.690000000
2016-06-01	1.660000000
2016-07-01	1.670000000
2016-08-01	1.670000000
2016-09-01	1.670000000
2016-10-01	1.670000000
2016-11-01	1.660000000
2016-12-01	1.650000000
2017-01-01	1.630000000
2017-02-01	1.680000000
2017-03-01	1.650000000
2017-04-01	1.630000000
2017-05-01	1.660000000
2017-06-01	1.630000000
2017-07-01	1.650000000
2017-08-01	1.630000000
2017-09-01	1.600000000
2017-10-01	1.600000000
2017-11-01	1.610000000
2017-12-01	1.550000000
2018-01-01	1.580000000
2018-02-01	1.590000000
2018-03-01	1.560000000
2018-04-01	1.590000000
2018-05-01	1.570000000
2018-06-01	1.580000000
2018-07-01	1.550000000
2018-08-01	1.500000000
2018-09-01	1.530000000