Month	Percent
1998-01-01	22.860000000
1998-02-01	24.000000000
1998-03-01	27.260000000
1998-04-01	29.400000000
1998-05-01	32.950000000
1998-06-01	40.630000000
1998-07-01	43.010000000
1998-08-01	44.350000000
1998-09-01	47.380000000
1998-10-01	54.670000000
1998-11-01	53.060000000
1998-12-01	49.230000000
1999-01-01	45.500000000
1999-02-01	38.200000000
1999-03-01	34.850000000
1999-04-01	34.090000000
1999-05-01	31.200000000
1999-06-01	27.390000000
1999-07-01	23.450000000
1999-08-01	19.060000000
1999-09-01	15.880000000
1999-10-01	13.370000000
1999-11-01	12.910000000
1999-12-01	12.950000000
2000-01-01	12.850000000
2000-02-01	12.640000000
2000-03-01	12.400000000
2000-04-01	12.160000000
2000-05-01	11.810000000
2000-06-01	11.690000000
2000-07-01	11.790000000
2000-08-01	12.360000000
2000-09-01	12.840000000
2000-10-01	13.090000000
2000-11-01	13.170000000
2000-12-01	13.240000000
2001-01-01	13.830000000
2001-02-01	14.350000000
2001-03-01	14.860000000
2001-04-01	14.930000000
2001-05-01	14.920000000
2001-06-01	15.000000000
2001-07-01	15.140000000
2001-08-01	15.620000000
2001-09-01	16.160000000
2001-10-01	16.670000000
2001-11-01	17.060000000
2001-12-01	17.240000000
2002-01-01	17.390000000
2002-02-01	17.240000000
2002-03-01	17.020000000
2002-04-01	16.570000000
2002-05-01	16.240000000
2002-06-01	15.850000000
2002-07-01	15.260000000
2002-08-01	14.770000000
2002-09-01	14.360000000
2002-10-01	13.940000000
2002-11-01	13.760000000
2002-12-01	13.630000000
2003-01-01	13.490000000
2003-02-01	13.150000000
2003-03-01	12.900000000
2003-04-01	12.480000000
2003-05-01	12.020000000
2003-06-01	11.550000000
2003-07-01	10.650000000
2003-08-01	9.580000000
2003-09-01	8.580000000
2003-10-01	7.960000000
2003-11-01	7.580000000
2003-12-01	7.140000000
2004-01-01	6.680000000
2004-02-01	6.380000000
2004-03-01	6.110000000
2004-04-01	6.010000000
2004-05-01	6.170000000
2004-06-01	6.310000000
2004-07-01	6.490000000
2004-08-01	6.540000000
2004-09-01	6.610000000
2004-10-01	6.650000000
2004-11-01	6.660000000
2004-12-01	6.710000000
2005-01-01	6.710000000
2005-02-01	6.740000000
2005-03-01	6.930000000
2005-04-01	6.870000000
2005-05-01	7.030000000
2005-06-01	7.190000000
2005-07-01	7.410000000
2005-08-01	7.710000000
2005-09-01	8.510000000
2005-10-01	9.380000000
2005-11-01	10.720000000
2005-12-01	11.750000000
2006-01-01	12.230000000
2006-02-01	12.320000000
2006-03-01	12.190000000
2006-04-01	12.030000000
2006-05-01	11.820000000
2006-06-01	11.700000000
2006-07-01	11.570000000
2006-08-01	11.340000000
2006-09-01	11.050000000
2006-10-01	10.720000000
2006-11-01	10.250000000
2006-12-01	9.710000000
2007-01-01	9.260000000
2007-02-01	8.830000000
2007-03-01	8.520000000
2007-04-01	8.300000000
2007-05-01	8.060000000
2007-06-01	7.870000000
2007-07-01	7.690000000
2007-08-01	7.510000000
2007-09-01	7.440000000
2007-10-01	7.410000000
2007-11-01	7.400000000
2007-12-01	7.420000000
2008-01-01	8.043424286
2008-02-01	8.055277500
2008-03-01	8.103703889
2008-04-01	8.146779545
2008-05-01	8.420810500
2008-06-01	9.139762857
2008-07-01	9.648686364
2008-08-01	9.852501500
2008-09-01	10.588099050
2008-10-01	11.784792500
2008-11-01	12.396180500
2008-12-01	12.171017000
2009-01-01	11.178973680
2009-02-01	10.010409500
2009-03-01	9.443970500
2009-04-01	8.948676500
2009-05-01	8.350762500
2009-06-01	7.672518182
2009-07-01	7.330279524
2009-08-01	7.073940500
2009-09-01	6.982196316
2009-10-01	7.014144545
2009-11-01	7.123530000
2009-12-01	7.121944286
2010-01-01	7.031029500
2010-02-01	7.036067895
2010-03-01	7.070455455
2010-04-01	7.004875238
2010-05-01	6.903783158
2010-06-01	6.926274286
2010-07-01	6.950079545
2010-08-01	6.966449524
2010-09-01	6.933375263
2010-10-01	6.876806667
2010-11-01	6.735130000
2010-12-01	6.636912857
2011-01-01	6.606611429
2011-02-01	6.666241667
2011-03-01	6.868548696
2011-04-01	7.088380000
2011-05-01	7.464085714
2011-06-01	7.135480000
2011-07-01	7.122190476
2011-08-01	6.835789474
2011-09-01	6.295300000
2011-10-01	5.928000000
2011-11-01	5.503090909
2011-12-01	5.323523810
2012-01-01	5.010000000
2012-02-01	4.414742857
2012-03-01	4.202152381
2012-04-01	4.222360000
2012-05-01	4.321937143
2012-06-01	4.620209524
2012-07-01	4.750145455
2012-08-01	4.878294737
2012-09-01	4.921200000
2012-10-01	4.900527273
2012-11-01	4.913060000
2012-12-01	4.937755556
2013-01-01	4.956895238
2013-02-01	4.919806000
2013-03-01	4.900222105
2013-04-01	4.900000000
2013-05-01	4.900746818
2013-06-01	5.165602105
2013-07-01	5.796967391
2013-08-01	6.201278421
2013-09-01	6.975102381
2013-10-01	7.204659524
2013-11-01	7.453001500
2013-12-01	7.706790500
2014-01-01	7.925875500
2014-02-01	7.997925000
2014-03-01	8.092905500
2014-04-01	8.138687000
2014-05-01	8.149566111
2014-06-01	8.149955238
2014-07-01	8.148643889
2014-08-01	8.145236190
2014-09-01	8.109305909
2014-10-01	7.704798261
2014-11-01	7.379158500
2014-12-01	7.180389524
2015-01-01	7.122027143
2015-02-01	7.005693158
2015-03-01	6.805414545
2015-04-01	6.865175238
2015-05-01	6.908455789
2015-06-01	6.941506667
2015-07-01	7.373649500
2015-08-01	7.456800500
2015-09-01	7.743073810
2015-10-01	8.191063333
2015-11-01	8.368109048
2015-12-01	8.706614500
2016-01-01	8.583902000
2016-02-01	8.129706000
2016-03-01	7.027694286
2016-04-01	6.623336190
2016-05-01	6.649917500
2016-06-01	7.043247273
2016-07-01	7.185260000
2016-08-01	7.118347273
2016-09-01	7.134290952
2016-10-01	7.019615238
2016-11-01	6.968423636
2016-12-01	7.207268500
2017-01-01	6.937001429
2017-02-01	6.827474737
2017-03-01	6.858244091
2017-04-01	6.854500556
2017-05-01	6.856186000
2017-06-01	6.887291875
2017-07-01	6.900419048
2017-08-01	6.234481364
2017-09-01	5.378636316
2017-10-01	5.193181364
2017-11-01	5.197626364
2017-12-01	5.378411053
2018-01-01	5.308506364
2018-02-01	5.305433684
2018-03-01	5.323601905
2018-04-01	5.453283333
2018-05-01	6.248857000
2018-06-01	7.102219286
2018-07-01	7.237245909
2018-08-01	7.070587619
2018-09-01	7.138178947
2018-10-01	7.459431304