Quarter	Percent
1992-10-01	10.195000000
1993-01-01	12.105600000
1993-04-01	12.083461540
1993-07-01	9.359545455
1993-10-01	9.826296296
1994-01-01	10.553461540
1994-04-01	11.562692310
1994-07-01	14.196000000
1994-10-01	17.032307690
1995-01-01	17.360000000
1995-04-01	14.480000000
1995-07-01	14.130000000
1995-10-01	15.270000000
1996-01-01	15.040000000
1996-04-01	16.780000000
1996-07-01	17.220000000
1996-10-01	16.470000000
1997-01-01	14.970000000
1997-04-01	14.690000000
1997-07-01	14.430000000
1997-10-01	14.620000000
1998-01-01	13.540000000
1998-04-01	12.400000000
1998-07-01	10.070000000
1998-10-01	14.550000000
1999-01-01	14.000000000
1999-04-01	12.860000000
1999-07-01	12.300000000
1999-10-01	11.960000000
2000-01-01	10.520000000
2000-04-01	9.870000000
2000-07-01	9.430000000
2000-10-01	8.660000000
2001-01-01	7.900000000
2001-04-01	7.300000000
2001-07-01	6.600000000
2001-10-01	5.950000000
2002-01-01	4.600000000
2002-04-01	6.820000000
2002-07-01	9.640000000
2002-10-01	9.640000000
2003-01-01	9.420000000
2003-04-01	8.440000000
2003-07-01	6.820000000
2003-10-01	5.420000000
2004-01-01	4.520000000
2004-04-01	4.280000000
2004-07-01	4.280000000
2004-10-01	4.080000000
2005-01-01	3.660000000
2005-04-01	3.660000000
2005-07-01	3.560000000
2005-10-01	4.600000000
2006-01-01	4.860000000
2006-04-01	5.380000000
2006-07-01	5.660000000
2006-10-01	5.120000000
2007-01-01	4.080000000
2007-04-01	3.560000000
2007-07-01	4.080000000
2007-10-01	4.080000000
2008-01-01	3.820000000
2008-04-01	3.560000000
2008-07-01	4.330000000
2008-10-01	2.540000000
2009-01-01	0.760000000
2009-04-01	0.500000000
2009-07-01	0.750000000
2009-10-01	1.000000000
2010-01-01	1.260000000
2010-04-01	1.520000000
2010-07-01	1.760000000
2010-10-01	2.020000000
2011-01-01	2.540000000
2011-04-01	3.300000000
2011-07-01	3.300000000
2011-10-01	2.780000000
2012-01-01	2.540000000
2012-04-01	2.540000000
2012-07-01	2.280000000
2012-10-01	2.020000000
2013-01-01	1.760000000
2013-04-01	1.270000000
2013-07-01	1.260000000
2013-10-01	1.000000000
2014-01-01	0.790000000
2014-04-01	0.760000000
2014-07-01	0.270000000
2014-10-01	0.260000000
2015-01-01	0.100000000
2015-04-01	0.110000000
2015-07-01	0.100000000
2015-10-01	0.100000000
2016-01-01	0.100000000
2016-04-01	0.100000000
2016-07-01	0.100000000
2016-10-01	0.100000000
2017-01-01	0.100000000
2017-04-01	0.100000000
2017-07-01	0.100000000
2017-10-01	0.100000000
2018-01-01	0.100000000
2018-04-01	0.100000000
2018-07-01	0.100000000