Month	Percent
1969-07-01	5.800000000
1969-08-01	5.790000000
1969-09-01	5.810000000
1969-10-01	5.830000000
1969-11-01	5.850000000
1969-12-01	5.950000000
1970-01-01	5.950000000
1970-02-01	5.960000000
1970-03-01	6.050000000
1970-04-01	6.940000000
1970-05-01	6.850000000
1970-06-01	6.860000000
1970-07-01	6.890000000
1970-08-01	6.870000000
1970-09-01	6.870000000
1970-10-01	6.880000000
1970-11-01	6.830000000
1970-12-01	6.810000000
1971-01-01	6.850000000
1971-02-01	6.850000000
1971-03-01	6.840000000
1971-04-01	6.850000000
1971-05-01	6.820000000
1971-06-01	6.830000000
1971-07-01	6.810000000
1971-08-01	6.820000000
1971-09-01	6.780000000
1971-10-01	6.580000000
1971-11-01	6.380000000
1971-12-01	6.150000000
1972-01-01	6.140000000
1972-02-01	5.840000000
1972-03-01	5.840000000
1972-04-01	5.850000000
1972-05-01	5.850000000
1972-06-01	5.850000000
1972-07-01	5.800000000
1972-08-01	5.750000000
1972-09-01	5.750000000
1972-10-01	5.770000000
1972-11-01	5.760000000
1972-12-01	5.780000000
1973-01-01	5.690000000
1973-02-01	5.760000000
1973-03-01	5.800000000
1973-04-01	6.120000000
1973-05-01	6.200000000
1973-06-01	6.720000000
1973-07-01	6.740000000
1973-08-01	6.730000000
1973-09-01	8.380000000
1973-10-01	8.350000000
1973-11-01	8.350000000
1973-12-01	8.360000000
1974-01-01	8.360000000
1974-02-01	8.360000000
1974-03-01	8.370000000
1974-04-01	8.380000000
1974-05-01	8.450000000
1974-06-01	9.520000000
1974-07-01	9.500000000
1974-08-01	9.500000000
1974-09-01	9.500000000
1974-10-01	9.500000000
1974-11-01	9.500000000
1974-12-01	9.500000000
1975-01-01	9.400000000
1975-02-01	9.500000000
1975-03-01	9.500000000
1975-04-01	9.500000000
1975-05-01	9.500000000
1975-06-01	9.500000000
1975-07-01	10.000000000
1975-08-01	10.000000000
1975-09-01	10.000000000
1975-10-01	10.000000000
1975-11-01	10.000000000
1975-12-01	10.000000000
1976-01-01	10.020000000
1976-02-01	10.000000000
1976-03-01	9.990000000
1976-04-01	10.000000000
1976-05-01	10.000000000
1976-06-01	9.990000000
1976-07-01	10.000000000
1976-08-01	9.990000000
1976-09-01	9.990000000
1976-10-01	9.980000000
1976-11-01	10.000000000
1976-12-01	10.410000000
1977-01-01	10.400000000
1977-02-01	10.400000000
1977-03-01	10.400000000
1977-04-01	10.400000000
1977-05-01	10.410000000
1977-06-01	10.410000000
1977-07-01	10.410000000
1977-08-01	10.410000000
1977-09-01	10.180000000
1977-10-01	10.010000000
1977-11-01	9.790000000
1977-12-01	9.500000000
1978-01-01	9.360000000
1978-02-01	9.200000000
1978-03-01	9.200000000
1978-04-01	9.170000000
1978-05-01	9.100000000
1978-06-01	9.100000000
1978-07-01	9.100000000
1978-08-01	9.000000000
1978-09-01	9.000000000
1978-10-01	8.890000000
1978-11-01	8.800000000
1978-12-01	8.800000000
1979-01-01	8.850000000
1979-02-01	9.000000000
1979-03-01	9.350000000
1979-04-01	9.650000000
1979-05-01	9.700000000
1979-06-01	10.000000000
1979-07-01	10.070000000
1979-08-01	10.070000000
1979-09-01	10.070000000
1979-10-01	10.070000000
1979-11-01	10.080000000
1979-12-01	10.080000000
1980-01-01	10.450000000
1980-02-01	10.550000000
1980-03-01	11.200000000
1980-04-01	11.730000000
1980-05-01	11.780000000
1980-06-01	11.760000000
1980-07-01	11.780000000
1980-08-01	11.820000000
1980-09-01	11.780000000
1980-10-01	11.900000000
1980-11-01	12.420000000
1980-12-01	12.600000000
1981-01-01	13.100000000
1981-02-01	13.100000000
1981-03-01	13.100000000
1981-04-01	13.100000000
1981-05-01	13.100000000
1981-06-01	13.100000000
1981-07-01	13.900000000
1981-08-01	15.000000000
1981-09-01	15.000000000
1981-10-01	15.000000000
1981-11-01	15.000000000
1981-12-01	15.000000000
1982-01-01	15.000000000
1982-02-01	15.100000000
1982-03-01	15.150000000
1982-04-01	15.200000000
1982-05-01	16.400000000
1982-06-01	16.400000000
1982-07-01	16.400000000
1982-08-01	16.500000000
1982-09-01	15.200000000
1982-10-01	14.550000000
1982-11-01	14.600000000
1982-12-01	14.000000000
1983-01-01	13.000000000
1983-02-01	13.600000000
1983-03-01	14.400000000
1983-04-01	14.100000000
1983-05-01	13.100000000
1983-06-01	14.700000000
1983-07-01	14.800000000
1983-08-01	14.700000000
1983-09-01	14.150000000
1983-10-01	13.400000000
1983-11-01	13.200000000
1983-12-01	13.500000000
1984-01-01	13.500000000
1984-02-01	14.000000000
1984-03-01	14.100000000
1984-04-01	13.900000000
1984-05-01	14.150000000
1984-06-01	13.750000000
1984-07-01	13.150000000
1984-08-01	12.800000000
1984-09-01	13.100000000
1984-10-01	13.200000000
1984-11-01	13.250000000
1984-12-01	13.400000000
1985-01-01	13.100000000
1985-02-01	13.700000000
1985-03-01	13.800000000
1985-04-01	13.950000000
1985-05-01	13.800000000
1985-06-01	13.500000000
1985-07-01	13.400000000
1985-08-01	13.950000000
1985-09-01	13.800000000
1985-10-01	14.550000000
1985-11-01	15.050000000
1985-12-01	14.850000000
1986-01-01	14.100000000
1986-02-01	13.700000000
1986-03-01	12.600000000
1986-04-01	12.250000000
1986-05-01	12.650000000
1986-06-01	12.950000000
1986-07-01	14.200000000
1986-08-01	14.100000000
1986-09-01	13.850000000
1986-10-01	13.600000000
1986-11-01	13.600000000
1986-12-01	13.400000000
1987-01-01	13.800000000
1987-02-01	14.000000000
1987-03-01	13.450000000
1987-04-01	13.050000000
1987-05-01	13.000000000
1987-06-01	12.800000000
1987-07-01	12.950000000
1987-08-01	12.950000000
1987-09-01	12.500000000
1987-10-01	13.650000000
1987-11-01	13.300000000
1987-12-01	12.850000000
1988-01-01	12.400000000
1988-02-01	12.300000000
1988-03-01	11.900000000
1988-04-01	11.500000000
1988-05-01	12.300000000
1988-06-01	11.950000000
1988-07-01	11.950000000
1988-08-01	11.800000000
1988-09-01	11.950000000
1988-10-01	11.900000000
1988-11-01	12.350000000
1988-12-01	12.950000000
1989-01-01	13.300000000
1989-02-01	13.650000000
1989-03-01	13.650000000
1989-04-01	13.400000000
1989-05-01	13.900000000
1989-06-01	13.500000000
1989-07-01	13.350000000
1989-08-01	12.950000000
1989-09-01	13.650000000
1989-10-01	13.550000000
1989-11-01	13.100000000
1989-12-01	12.900000000
1990-01-01	12.800000000
1990-02-01	13.300000000
1990-03-01	13.440000000
1990-04-01	13.780000000
1990-05-01	13.510000000
1990-06-01	13.400000000
1990-07-01	13.160000000
1990-08-01	13.490000000
1990-09-01	13.630000000
1990-10-01	13.350000000
1990-11-01	12.230000000
1990-12-01	12.070000000
1991-01-01	11.520000000
1991-02-01	11.530000000
1991-03-01	11.380000000
1991-04-01	10.980000000
1991-05-01	10.750000000
1991-06-01	11.170000000
1991-07-01	10.990000000
1991-08-01	10.670000000
1991-09-01	10.310000000
1991-10-01	9.820000000
1991-11-01	9.780000000
1991-12-01	9.390000000
1992-01-01	10.110000000
1992-02-01	10.040000000
1992-03-01	9.890000000
1992-04-01	9.430000000
1992-05-01	9.120000000
1992-06-01	8.900000000
1992-07-01	8.300000000
1992-08-01	8.970000000
1992-09-01	8.940000000
1992-10-01	8.860000000
1992-11-01	9.140000000
1992-12-01	8.940000000
1993-01-01	8.600000000
1993-02-01	7.980000000
1993-03-01	7.820000000
1993-04-01	7.550000000
1993-05-01	7.710000000
1993-06-01	7.370000000
1993-07-01	6.880000000
1993-08-01	6.640000000
1993-09-01	6.840000000
1993-10-01	6.490000000
1993-11-01	6.810000000
1993-12-01	6.680000000
1994-01-01	6.360000000
1994-02-01	7.050000000
1994-03-01	7.950000000
1994-04-01	8.440000000
1994-05-01	8.790000000
1994-06-01	9.630000000
1994-07-01	9.570000000
1994-08-01	9.360000000
1994-09-01	10.330000000
1994-10-01	10.510000000
1994-11-01	10.470000000
1994-12-01	10.040000000
1995-01-01	10.334500000
1995-02-01	10.146500000
1995-03-01	10.137826090
1995-04-01	9.798823529
1995-05-01	9.106086957
1995-06-01	8.856190476
1995-07-01	9.081904762
1995-08-01	9.124347826
1995-09-01	8.686190476
1995-10-01	8.508636364
1995-11-01	8.495000000
1995-12-01	8.254736842
1996-01-01	8.112380952
1996-02-01	8.248571429
1996-03-01	8.808095238
1996-04-01	8.873684211
1996-05-01	8.832173913
1996-06-01	8.931578947
1996-07-01	8.629565217
1996-08-01	8.040000000
1996-09-01	8.003333333
1996-10-01	7.550434783
1996-11-01	7.156666667
1996-12-01	7.324000000
1997-01-01	7.459047619
1997-02-01	7.394000000
1997-03-01	7.899473684
1997-04-01	7.923809524
1997-05-01	7.674545455
1997-06-01	7.151000000
1997-07-01	6.642608696
1997-08-01	6.650952381
1997-09-01	6.311363636
1997-10-01	6.182173913
1997-11-01	6.031000000
1997-12-01	6.139047619
1998-01-01	5.806000000
1998-02-01	5.887000000
1998-03-01	5.865000000
1998-04-01	5.685000000
1998-05-01	5.639047619
1998-06-01	5.576190476
1998-07-01	5.521304348
1998-08-01	5.638571429
1998-09-01	5.345909091
1998-10-01	4.965909091
1998-11-01	5.130952381
1998-12-01	4.854761905
1999-01-01	5.127894737
1999-02-01	5.300000000
1999-03-01	5.526521739
1999-04-01	5.357500000
1999-05-01	5.875714286
1999-06-01	6.206666667
1999-07-01	6.135909091
1999-08-01	6.340000000
1999-09-01	6.341363636
1999-10-01	6.606666667
1999-11-01	6.556363636
1999-12-01	6.737142857
2000-01-01	7.177894737
2000-02-01	6.957619048
2000-03-01	6.570434783
2000-04-01	6.264705882
2000-05-01	6.465652174
2000-06-01	6.172380952
2000-07-01	6.161904762
2000-08-01	6.227391304
2000-09-01	6.136190476
2000-10-01	6.107954545
2000-11-01	5.989545455
2000-12-01	5.543157895
2001-01-01	5.405476190
2001-02-01	5.321250000
2001-03-01	5.130681818
2001-04-01	5.577222222
2001-05-01	5.943478261
2001-06-01	5.896750000
2001-07-01	6.086363636
2001-08-01	5.761521739
2001-09-01	5.578250000
2001-10-01	5.407608696
2001-11-01	5.457727273
2001-12-01	5.816842105
2002-01-01	5.858333333
2002-02-01	5.945750000
2002-03-01	6.309000000
2002-04-01	6.294000000
2002-05-01	6.215217391
2002-06-01	6.007631579
2002-07-01	5.859782609
2002-08-01	5.648409091
2002-09-01	5.435714286
2002-10-01	5.659130435
2002-11-01	5.499523810
2002-12-01	5.395000000
2003-01-01	5.275000000
2003-02-01	5.167750000
2003-03-01	5.271666667
2003-04-01	5.346052632
2003-05-01	5.028181818
2003-06-01	4.802750000
2003-07-01	5.232826087
2003-08-01	5.524047619
2003-09-01	5.512954545
2003-10-01	5.608695652
2003-11-01	5.874000000
2003-12-01	5.757380952
2004-01-01	5.700500000
2004-02-01	5.620500000
2004-03-01	5.415434783
2004-04-01	5.803000000
2004-05-01	5.958095238
2004-06-01	5.845476190
2004-07-01	5.717727273
2004-08-01	5.583181818
2004-09-01	5.412045455
2004-10-01	5.401428571
2004-11-01	5.400000000
2004-12-01	5.231904762
2005-01-01	5.351842105
2005-02-01	5.397750000
2005-03-01	5.652619048
2005-04-01	5.472000000
2005-05-01	5.287727273
2005-06-01	5.140476190
2005-07-01	5.190238095
2005-08-01	5.218695652
2005-09-01	5.186363636
2005-10-01	5.400238095
2005-11-01	5.435227273
2005-12-01	5.346500000
2006-01-01	5.203500000
2006-02-01	5.272000000
2006-03-01	5.341304348
2006-04-01	5.579705882
2006-05-01	5.750000000
2006-06-01	5.737857143
2006-07-01	5.834047619
2006-08-01	5.773260870
2006-09-01	5.601666667
2006-10-01	5.665000000
2006-11-01	5.599545455
2006-12-01	5.696578947
2007-01-01	5.877619048
2007-02-01	5.809250000
2007-03-01	5.736818182
2007-04-01	5.909722222
2007-05-01	5.920869565
2007-06-01	6.204750000
2007-07-01	6.149772727
2007-08-01	5.925909091
2007-09-01	5.992105263
2007-10-01	6.174347826
2007-11-01	6.025454545
2007-12-01	6.207631579
2008-01-01	6.076428571
2008-02-01	6.294523810
2008-03-01	6.085526316
2008-04-01	6.170476190
2008-05-01	6.355000000
2008-06-01	6.586750000
2008-07-01	6.366521739
2008-08-01	5.862500000
2008-09-01	5.645909091
2008-10-01	5.215227273
2008-11-01	4.940750000
2008-12-01	4.215714286
2009-01-01	4.085750000
2009-02-01	4.253000000
2009-03-01	4.327727273
2009-04-01	4.512000000
2009-05-01	5.004285714
2009-06-01	5.556666667
2009-07-01	5.487826087
2009-08-01	5.533250000
2009-09-01	5.323636364
2009-10-01	5.450238095
2009-11-01	5.466666667
2009-12-01	5.473095238
2010-01-01	5.557500000
2010-02-01	5.477500000
2010-03-01	5.620000000
2010-04-01	5.795000000
2010-05-01	5.480000000
2010-06-01	5.327500000
2010-07-01	5.145000000
2010-08-01	4.970000000
2010-09-01	5.002500000
2010-10-01	5.085000000
2010-11-01	5.377500000
2010-12-01	5.555000000
2011-01-01	5.520000000
2011-02-01	5.610000000
2011-03-01	5.435000000
2011-04-01	5.512500000
2011-05-01	5.325000000
2011-06-01	5.160000000
2011-07-01	5.020000000
2011-08-01	4.492500000
2011-09-01	4.202500000
2011-10-01	4.370000000
2011-11-01	4.082500000
2011-12-01	3.825000000
2012-01-01	3.795000000
2012-02-01	3.970000000
2012-03-01	4.150000000
2012-04-01	3.857500000
2012-05-01	3.277500000
2012-06-01	2.995000000
2012-07-01	2.887500000
2012-08-01	3.187500000
2012-09-01	3.092500000
2012-10-01	3.022500000
2012-11-01	3.087500000
2012-12-01	3.227500000
2013-01-01	3.397500000
2013-02-01	3.497500000
2013-03-01	3.512500000
2013-04-01	3.245000000
2013-05-01	3.225000000
2013-06-01	3.540000000
2013-07-01	3.750000000
2013-08-01	3.860000000
2013-09-01	4.000000000
2013-10-01	3.970000000
2013-11-01	4.130000000
2013-12-01	4.240000000
2014-01-01	4.180000000
2014-02-01	4.120000000
2014-03-01	4.100000000
2014-04-01	4.030000000
2014-05-01	3.780000000
2014-06-01	3.700000000
2014-07-01	3.470000000
2014-08-01	3.410000000
2014-09-01	3.550000000
2014-10-01	3.320000000
2014-11-01	3.260000000
2014-12-01	2.960000000
2015-01-01	2.640000000
2015-02-01	2.500000000
2015-03-01	2.480000000
2015-04-01	2.410000000
2015-05-01	2.880000000
2015-06-01	2.980000000
2015-07-01	2.900000000
2015-08-01	2.720000000
2015-09-01	2.700000000
2015-10-01	2.620000000
2015-11-01	2.850000000
2015-12-01	2.850000000
2016-01-01	2.730000000
2016-02-01	2.480000000
2016-03-01	2.570000000
2016-04-01	2.520000000
2016-05-01	2.320000000
2016-06-01	2.120000000
2016-07-01	1.930000000
2016-08-01	1.880000000
2016-09-01	1.990000000
2016-10-01	2.200000000
2016-11-01	2.510000000
2016-12-01	2.790000000
2017-01-01	2.730000000
2017-02-01	2.750000000
2017-03-01	2.810000000
2017-04-01	2.560000000
2017-05-01	2.540000000
2017-06-01	2.410000000
2017-07-01	2.640000000
2017-08-01	2.600000000
2017-09-01	2.700000000
2017-10-01	2.780000000
2017-11-01	2.570000000
2017-12-01	2.580000000
2018-01-01	2.750000000
2018-02-01	2.860000000
2018-03-01	2.720000000
2018-04-01	2.740000000
2018-05-01	2.790000000
2018-06-01	2.700000000
2018-07-01	2.640000000
2018-08-01	2.590000000
2018-09-01	2.630000000
2018-10-01	2.680000000