Monthly Percent
1979-01-01 9.000000000
1979-02-01 8.700000000
1979-03-01 9.300000000
1979-04-01 9.400000000
1979-05-01 8.900000000
1979-06-01 9.000000000
1979-07-01 8.900000000
1979-08-01 10.500000000
1979-09-01 13.000000000
1979-10-01 15.600000000
1979-11-01 13.600000000
1979-12-01 12.700000000
1980-01-01 11.800000000
1980-02-01 12.100000000
1980-03-01 14.200000000
1980-04-01 14.400000000
1980-05-01 12.700000000
1980-06-01 10.300000000
1980-07-01 10.200000000
1980-08-01 11.900000000
1980-09-01 13.000000000
1980-10-01 11.700000000
1980-11-01 12.700000000
1980-12-01 11.800000000
1981-01-01 11.400000000
1981-02-01 12.800000000
1981-03-01 12.300000000
1981-04-01 11.900000000
1981-05-01 12.700000000
1981-06-01 13.000000000
1981-07-01 12.800000000
1981-08-01 13.700000000
1981-09-01 13.600000000
1981-10-01 13.900000000
1981-11-01 14.000000000
1981-12-01 15.400000000
1982-01-01 13.800000000
1982-02-01 14.000000000
1982-03-01 15.200000000
1982-04-01 16.900000000
1982-05-01 17.100000000
1982-06-01 15.500000000
1982-07-01 16.500000000
1982-08-01 14.900000000
1982-09-01 14.800000000
1982-10-01 15.600000000
1982-11-01 15.400000000
1982-12-01 14.700000000
1983-01-01 13.600000000
1983-02-01 13.700000000
1983-03-01 14.000000000
1983-04-01 13.400000000
1983-05-01 13.700000000
1983-06-01 13.200000000
1983-07-01 13.100000000
1983-08-01 13.000000000
1983-09-01 13.100000000
1983-10-01 13.200000000
1983-11-01 13.000000000
1983-12-01 12.600000000
1984-01-01 13.000000000
1984-02-01 13.100000000
1984-03-01 13.400000000
1984-04-01 13.300000000
1984-05-01 12.900000000
1984-06-01 12.600000000
1984-07-01 12.600000000
1984-08-01 12.600000000
1984-09-01 13.300000000
1984-10-01 13.200000000
1984-11-01 13.100000000
1984-12-01 13.100000000
1985-01-01 12.600000000
1985-02-01 12.300000000
1985-03-01 12.600000000
1985-04-01 12.600000000
1985-05-01 12.700000000
1985-06-01 12.500000000
1985-07-01 12.600000000
1985-08-01 12.500000000
1985-09-01 12.500000000
1985-10-01 12.500000000
1985-11-01 12.400000000
1985-12-01 12.500000000
1986-01-01 13.070000000
1986-02-01 13.390000000
1986-03-01 13.240000000
1986-04-01 13.610000000
1986-05-01 15.010000000
1986-06-01 14.260000000
1986-07-01 14.540000000
1986-08-01 14.470000000
1986-09-01 14.360000000
1986-10-01 14.730000000
1986-11-01 15.150000000
1986-12-01 16.870000000
1987-01-01 16.500000000
1987-02-01 15.130000000
1987-03-01 14.670000000
1987-04-01 14.580000000
1987-05-01 14.580000000
1987-06-01 14.440000000
1987-07-01 14.260000000
1987-08-01 14.200000000
1987-09-01 13.940000000
1987-10-01 14.040000000
1987-11-01 14.920000000
1987-12-01 15.290000000
1988-01-01 14.610000000
1988-02-01 14.250000000
1988-03-01 14.240000000
1988-04-01 14.060000000
1988-05-01 13.510000000
1988-06-01 13.030000000
1988-07-01 13.280000000
1988-08-01 13.350000000
1988-09-01 13.520000000
1988-10-01 13.080000000
1988-11-01 13.210000000
1988-12-01 11.980000000
1989-01-01 11.490000000
1989-02-01 11.290000000
1989-03-01 11.360000000
1989-04-01 11.320000000
1989-05-01 10.990000000
1989-06-01 11.020000000
1989-07-01 11.120000000
1989-08-01 11.210000000
1989-09-01 10.990000000
1989-10-01 11.410000000
1989-11-01 11.900000000
1989-12-01 12.450000000
1990-01-01 11.950000000
1990-02-01 11.550000000
1990-03-01 11.960000000
1990-04-01 12.310000000
1990-05-01 11.760000000
1990-06-01 11.460000000
1990-07-01 11.120000000
1990-08-01 11.070000000
1990-09-01 10.820000000
1990-10-01 11.350000000
1990-11-01 11.460000000
1990-12-01 11.660000000
1991-01-01 11.510000000
1991-02-01 10.970000000
1991-03-01 10.710000000
1991-04-01 10.410000000
1991-05-01 10.110000000
1991-06-01 10.230000000
1991-07-01 10.410000000
1991-08-01 10.300000000
1991-09-01 10.540000000
1991-10-01 10.460000000
1991-11-01 10.320000000
1991-12-01 10.800000000
1992-01-01 10.620000000
1992-02-01 10.530000000
1992-03-01 10.360000000
1992-04-01 10.350000000
1992-05-01 10.410000000
1992-06-01 10.370000000
1992-07-01 10.520000000
1992-08-01 11.150000000
1992-09-01 15.130000000
1992-10-01 12.500000000
1992-11-01 14.630000000
1992-12-01 15.420000000
1993-01-01 10.590000000
1993-02-01 9.320000000
1993-03-01 8.790000000
1993-04-01 8.350000000
1993-05-01 7.320000000
1993-06-01 6.830000000
1993-07-01 6.480000000
1993-08-01 5.960000000
1993-09-01 6.340000000
1993-10-01 6.180000000
1993-11-01 5.450000000
1993-12-01 5.570000000
1994-01-01 5.360000000
1994-02-01 5.090000000
1994-03-01 5.250000000
1994-04-01 5.460000000
1994-05-01 5.150000000
1994-06-01 5.430000000
1994-07-01 5.530000000
1994-08-01 5.860000000
1994-09-01 6.680000000
1994-10-01 6.890000000
1994-11-01 7.270000000
1994-12-01 6.240000000
1995-01-01 5.760000000
1995-02-01 5.460000000
1995-03-01 5.390000000
1995-04-01 5.360000000
1995-05-01 5.670000000
1995-06-01 5.790000000
1995-07-01 5.620000000
1995-08-01 5.340000000
1995-09-01 5.360000000
1995-10-01 5.340000000
1995-11-01 5.220000000
1995-12-01 5.430000000
1996-01-01 5.480000000
1996-02-01 5.260000000
1996-03-01 4.920000000
1996-04-01 4.700000000
1996-05-01 4.760000000
1996-06-01 4.930000000
1996-07-01 4.990000000
1996-08-01 5.020000000
1996-09-01 5.090000000
1996-10-01 5.040000000
1996-11-01 4.390000000
1996-12-01 4.140000000
1997-01-01 3.520000000
1997-02-01 3.520000000
1997-03-01 3.510000000
1997-04-01 3.500000000
1997-05-01 3.460000000
1997-06-01 3.510000000
1997-07-01 4.000000000
1997-08-01 4.040000000
1997-09-01 3.940000000
1997-10-01 3.970000000
1997-11-01 3.950000000
1997-12-01 3.870000000
1998-01-01 3.820000000
1998-02-01 3.840000000
1998-03-01 4.080000000
1998-04-01 4.150000000
1998-05-01 4.470000000
1998-06-01 4.820000000
1998-07-01 5.350000000
1998-08-01 6.740000000
1998-09-01 8.030000000
1998-10-01 7.920000000
1998-11-01 7.960000000
1998-12-01 8.240000000
1999-01-01 7.720000000
1999-02-01 7.270000000
1999-03-01 6.880000000
1999-04-01 6.550000000
1999-05-01 6.660000000
1999-06-01 6.480000000
1999-07-01 6.350000000
1999-08-01 6.090000000
1999-09-01 5.970000000
1999-10-01 6.370000000
1999-11-01 6.150000000
1999-12-01 5.970000000
2000-01-01 5.880000000
2000-02-01 5.890000000
2000-03-01 6.000000000
2000-04-01 6.230000000
2000-05-01 6.500000000
2000-06-01 6.720000000
2000-07-01 6.910000000
2000-08-01 7.120000000
2000-09-01 7.330000000
2000-10-01 7.520000000
2000-11-01 7.430000000
2000-12-01 7.420000000
2001-01-01 7.410000000
2001-02-01 7.320000000
2001-03-01 7.390000000
2001-04-01 7.480000000
2001-05-01 7.450000000
2001-06-01 7.420000000
2001-07-01 7.370000000
2001-08-01 7.310000000
2001-09-01 7.140000000
2001-10-01 6.940000000
2001-11-01 6.900000000
2001-12-01 6.590000000
2002-01-01 6.320000000
2002-02-01 6.570000000
2002-03-01 6.720000000
2002-04-01 6.770000000
2002-05-01 6.900000000
2002-06-01 7.120000000
2002-07-01 7.250000000
2002-08-01 7.260000000
2002-09-01 7.150000000
2002-10-01 7.120000000
2002-11-01 7.090000000
2002-12-01 6.620000000
2003-01-01 5.990000000
2003-02-01 5.690000000
2003-03-01 5.490000000
2003-04-01 5.260000000
2003-05-01 4.920000000
2003-06-01 4.040000000
2003-07-01 3.450000000
2003-08-01 3.140000000
2003-09-01 2.810000000
2003-10-01 2.860000000
2003-11-01 2.890000000
2003-12-01 2.640000000
2004-01-01 2.260000000
2004-02-01 2.010000000
2004-03-01 1.840000000
2004-04-01 1.970000000
2004-05-01 1.990000000
2004-06-01 2.030000000
2004-07-01 2.020000000
2004-08-01 2.020000000
2004-09-01 1.960000000
2004-10-01 2.000000000
2004-11-01 1.990000000
2004-12-01 1.990000000
2005-01-01 1.960000000
2005-02-01 1.920000000
2005-03-01 2.020000000
2005-04-01 2.050000000
2005-05-01 2.080000000
2005-06-01 2.150000000
2005-07-01 2.220000000
2005-08-01 2.250000000
2005-09-01 2.350000000
2005-10-01 2.450000000
2005-11-01 2.540000000
2005-12-01 2.550000000
2006-01-01 2.520000000
2006-02-01 2.570000000
2006-03-01 2.720000000
2006-04-01 2.820000000
2006-05-01 2.940000000
2006-06-01 3.030000000
2006-07-01 3.090000000
2006-08-01 3.230000000
2006-09-01 3.370000000
2006-10-01 3.480000000
2006-11-01 3.620000000
2006-12-01 3.800000000
2007-01-01 3.980000000
2007-02-01 4.200000000
2007-03-01 4.430000000
2007-04-01 4.540000000
2007-05-01 4.600000000
2007-06-01 4.750000000
2007-07-01 4.890000000
2007-08-01 5.180000000
2007-09-01 5.510000000
2007-10-01 5.670000000
2007-11-01 5.780000000
2007-12-01 5.960000000
2008-01-01 5.790000000
2008-02-01 5.910000000
2008-03-01 6.180000000
2008-04-01 6.300000000
2008-05-01 6.480000000
2008-06-01 6.410000000
2008-07-01 6.460000000
2008-08-01 6.530000000
2008-09-01 6.820000000
2008-10-01 6.920000000
2008-11-01 6.180000000
2008-12-01 4.640000000
2009-01-01 3.700000000
2009-02-01 3.480000000
2009-03-01 3.170000000
2009-04-01 2.870000000
2009-05-01 2.400000000
2009-06-01 2.100000000
2009-07-01 1.870000000
2009-08-01 1.880000000
2009-09-01 1.930000000
2009-10-01 2.030000000
2009-11-01 2.050000000
2009-12-01 2.080000000
2010-01-01 2.250000000
2010-02-01 2.270000000
2010-03-01 2.300000000
2010-04-01 2.390000000
2010-05-01 2.500000000
2010-06-01 2.670000000
2010-07-01 2.690000000
2010-08-01 2.650000000
2010-09-01 2.640000000
2010-10-01 2.560000000
2010-11-01 2.510000000
2010-12-01 2.590000000
2011-01-01 2.590000000
2011-02-01 2.610000000
2011-03-01 2.620000000
2011-04-01 2.690000000
2011-05-01 2.720000000
2011-06-01 2.850000000
2011-07-01 2.940000000
2011-08-01 3.100000000
2011-09-01 3.080000000
2011-10-01 3.080000000
2011-11-01 3.160000000
2011-12-01 3.020000000
2012-01-01 2.700000000
2012-02-01 2.670000000
2012-03-01 2.430000000
2012-04-01 2.320000000
2012-05-01 2.320000000
2012-06-01 2.340000000
2012-07-01 2.240000000
2012-08-01 2.130000000
2012-09-01 1.960000000
2012-10-01 1.920000000
2012-11-01 1.920000000
2012-12-01 1.870000000
2013-01-01 1.860000000
2013-02-01 1.900500000
2013-03-01 1.848947368
2013-04-01 1.821428571
2013-05-01 1.763684211
2013-06-01 1.733500000
2013-07-01 1.688260870
2013-08-01 1.723181818
2013-09-01 1.713809524
2013-10-01 1.685217391
2013-11-01 1.663333333
2013-12-01 1.658947368
2014-01-01 1.649090909
2014-02-01 1.699000000
2014-03-01 1.707619048
2014-04-01 1.752105263
2014-05-01 1.819000000
2014-06-01 1.804000000
2014-07-01 1.715217391
2014-08-01 1.722380952
2014-09-01 1.700909091
2014-10-01 1.625652174
2014-11-01 1.659000000
2014-12-01 1.534500000
2015-01-01 1.388095238
2015-02-01 1.380000000
2015-03-01 1.380000000
2015-04-01 1.470000000
2015-05-01 1.490000000
2015-06-01 1.350000000
2015-07-01 1.270000000
2015-08-01 1.200000000
2015-09-01 1.160000000
2015-10-01 1.110000000
2015-11-01 1.150000000
2015-12-01 1.140000000
2016-01-01 1.160000000
2016-02-01 1.090000000
2016-03-01 1.020000000
2016-04-01 0.980000000
2016-05-01 0.980000000
2016-06-01 1.020000000
2016-07-01 1.010000000
2016-08-01 1.080000000
2016-09-01 1.090000000
2016-10-01 1.110000000
2016-11-01 1.100000000
2016-12-01 1.160000000
2017-01-01 1.080000000
2017-02-01 1.020000000
2017-03-01 0.960000000
2017-04-01 0.980000000
2017-05-01 0.900000000
2017-06-01 0.870000000
2017-07-01 0.840000000
2017-08-01 0.800000000
2017-09-01 0.800000000
2017-10-01 0.820000000
2017-11-01 0.780000000
2017-12-01 0.830000000
2018-01-01 0.840000000
2018-02-01 0.930000000
2018-03-01 1.070000000
2018-04-01 1.140000000
2018-05-01 1.070000000
2018-06-01 1.010000000
2018-07-01 1.040000000
2018-08-01 1.040000000
2018-09-01 1.090000000
2018-10-01 1.090000000