Month	Percent
1960-01-01	5.820000000
1960-02-01	5.800000000
1960-03-01	5.760000000
1960-04-01	5.810000000
1960-05-01	5.740000000
1960-06-01	5.730000000
1960-07-01	5.680000000
1960-08-01	5.510000000
1960-09-01	5.540000000
1960-10-01	5.560000000
1960-11-01	5.520000000
1960-12-01	5.490000000
1961-01-01	5.550000000
1961-02-01	5.640000000
1961-03-01	5.590000000
1961-04-01	5.500000000
1961-05-01	5.510000000
1961-06-01	5.470000000
1961-07-01	5.450000000
1961-08-01	5.430000000
1961-09-01	5.450000000
1961-10-01	5.530000000
1961-11-01	5.550000000
1961-12-01	5.560000000
1962-01-01	5.520000000
1962-02-01	5.620000000
1962-03-01	5.620000000
1962-04-01	5.480000000
1962-05-01	5.530000000
1962-06-01	5.400000000
1962-07-01	5.320000000
1962-08-01	5.330000000
1962-09-01	5.370000000
1962-10-01	5.340000000
1962-11-01	5.370000000
1962-12-01	5.310000000
1963-01-01	5.340000000
1963-02-01	5.360000000
1963-03-01	5.360000000
1963-04-01	5.290000000
1963-05-01	5.360000000
1963-06-01	5.280000000
1963-07-01	5.240000000
1963-08-01	5.280000000
1963-09-01	5.370000000
1963-10-01	5.410000000
1963-11-01	5.410000000
1963-12-01	5.360000000
1964-01-01	5.450000000
1964-02-01	5.440000000
1964-03-01	5.420000000
1964-04-01	5.460000000
1964-05-01	5.490000000
1964-06-01	5.470000000
1964-07-01	5.400000000
1964-08-01	5.400000000
1964-09-01	5.460000000
1964-10-01	5.500000000
1964-11-01	5.450000000
1964-12-01	5.450000000
1965-01-01	5.440000000
1965-02-01	6.310000000
1965-03-01	6.310000000
1965-04-01	6.320000000
1965-05-01	6.280000000
1965-06-01	6.270000000
1965-07-01	6.150000000
1965-08-01	6.160000000
1965-09-01	6.220000000
1965-10-01	6.340000000
1965-11-01	6.350000000
1965-12-01	6.280000000
1966-01-01	6.320000000
1966-02-01	6.370000000
1966-03-01	6.410000000
1966-04-01	6.440000000
1966-05-01	6.430000000
1966-06-01	6.720000000
1966-07-01	6.600000000
1966-08-01	6.660000000
1966-09-01	6.710000000
1966-10-01	6.760000000
1966-11-01	6.740000000
1966-12-01	6.790000000
1967-01-01	6.780000000
1967-02-01	6.730000000
1967-03-01	6.640000000
1967-04-01	6.720000000
1967-05-01	6.670000000
1967-06-01	6.710000000
1967-07-01	6.680000000
1967-08-01	6.630000000
1967-09-01	6.710000000
1967-10-01	6.690000000
1967-11-01	6.770000000
1967-12-01	6.750000000
1968-01-01	6.780000000
1968-02-01	6.770000000
1968-03-01	6.770000000
1968-04-01	6.730000000
1968-05-01	6.980000000
1968-06-01	7.010000000
1968-07-01	6.940000000
1968-08-01	6.900000000
1968-09-01	6.930000000
1968-10-01	6.950000000
1968-11-01	7.230000000
1968-12-01	7.420000000
1969-01-01	7.560000000
1969-02-01	7.870000000
1969-03-01	8.100000000
1969-04-01	8.080000000
1969-05-01	8.120000000
1969-06-01	8.180000000
1969-07-01	8.160000000
1969-08-01	8.210000000
1969-09-01	8.270000000
1969-10-01	8.440000000
1969-11-01	8.510000000
1969-12-01	8.630000000
1970-01-01	8.740000000
1970-02-01	8.840000000
1970-03-01	8.760000000
1970-04-01	8.630000000
1970-05-01	8.620000000
1970-06-01	8.550000000
1970-07-01	8.460000000
1970-08-01	8.390000000
1970-09-01	8.480000000
1970-10-01	8.470000000
1970-11-01	8.410000000
1970-12-01	8.260000000
1971-01-01	8.330000000
1971-02-01	8.400000000
1971-03-01	8.420000000
1971-04-01	8.430000000
1971-05-01	8.460000000
1971-06-01	8.450000000
1971-07-01	8.480000000
1971-08-01	8.440000000
1971-09-01	8.460000000
1971-10-01	8.460000000
1971-11-01	8.450000000
1971-12-01	8.280000000
1972-01-01	8.410000000
1972-02-01	8.330000000
1972-03-01	8.070000000
1972-04-01	7.920000000
1972-05-01	7.900000000
1972-06-01	7.830000000
1972-07-01	7.800000000
1972-08-01	7.860000000
1972-09-01	7.830000000
1972-10-01	7.910000000
1972-11-01	8.020000000
1972-12-01	8.280000000
1973-01-01	8.330000000
1973-02-01	8.380000000
1973-03-01	8.530000000
1973-04-01	8.620000000
1973-05-01	8.690000000
1973-06-01	8.880000000
1973-07-01	9.150000000
1973-08-01	9.330000000
1973-09-01	9.420000000
1973-10-01	9.500000000
1973-11-01	9.500000000
1973-12-01	9.650000000
1974-01-01	10.210000000
1974-02-01	10.480000000
1974-03-01	10.690000000
1974-04-01	10.700000000
1974-05-01	10.800000000
1974-06-01	11.450000000
1974-07-01	11.400000000
1974-08-01	11.400000000
1974-09-01	11.380000000
1974-10-01	11.140000000
1974-11-01	11.170000000
1974-12-01	11.210000000
1975-01-01	10.900000000
1975-02-01	10.690000000
1975-03-01	10.340000000
1975-04-01	10.360000000
1975-05-01	10.310000000
1975-06-01	10.210000000
1975-07-01	10.200000000
1975-08-01	10.110000000
1975-09-01	10.100000000
1975-10-01	10.150000000
1975-11-01	10.190000000
1975-12-01	10.180000000
1976-01-01	10.160000000
1976-02-01	10.160000000
1976-03-01	10.290000000
1976-04-01	10.240000000
1976-05-01	10.190000000
1976-06-01	10.370000000
1976-07-01	10.510000000
1976-08-01	10.610000000
1976-09-01	10.660000000
1976-10-01	10.950000000
1976-11-01	10.940000000
1976-12-01	11.040000000
1977-01-01	10.660000000
1977-02-01	10.720000000
1977-03-01	10.880000000
1977-04-01	11.120000000
1977-05-01	11.190000000
1977-06-01	11.110000000
1977-07-01	11.070000000
1977-08-01	11.000000000
1977-09-01	10.970000000
1977-10-01	11.010000000
1977-11-01	11.100000000
1977-12-01	11.070000000
1978-01-01	11.250000000
1978-02-01	11.360000000
1978-03-01	11.070000000
1978-04-01	10.750000000
1978-05-01	10.760000000
1978-06-01	10.600000000
1978-07-01	10.490000000
1978-08-01	10.400000000
1978-09-01	10.370000000
1978-10-01	10.210000000
1978-11-01	10.140000000
1978-12-01	9.940000000
1979-01-01	9.680000000
1979-02-01	9.770000000
1979-03-01	9.650000000
1979-04-01	9.640000000
1979-05-01	9.960000000
1979-06-01	10.710000000
1979-07-01	11.250000000
1979-08-01	11.670000000
1979-09-01	11.560000000
1979-10-01	11.600000000
1979-11-01	12.090000000
1979-12-01	12.590000000
1980-01-01	12.520000000
1980-02-01	14.110000000
1980-03-01	14.440000000
1980-04-01	13.950000000
1980-05-01	13.490000000
1980-06-01	13.340000000
1980-07-01	13.430000000
1980-08-01	13.460000000
1980-09-01	13.850000000
1980-10-01	14.270000000
1980-11-01	14.240000000
1980-12-01	14.310000000
1981-01-01	14.580000000
1981-02-01	15.050000000
1981-03-01	14.980000000
1981-04-01	14.970000000
1981-05-01	17.250000000
1981-06-01	17.320000000
1981-07-01	17.110000000
1981-08-01	17.030000000
1981-09-01	17.080000000
1981-10-01	16.940000000
1981-11-01	16.750000000
1981-12-01	16.440000000
1982-01-01	16.420000000
1982-02-01	16.290000000
1982-03-01	16.350000000
1982-04-01	16.290000000
1982-05-01	16.130000000
1982-06-01	15.980000000
1982-07-01	15.960000000
1982-08-01	15.790000000
1982-09-01	15.760000000
1982-10-01	15.810000000
1982-11-01	15.790000000
1982-12-01	15.400000000
1983-01-01	14.990000000
1983-02-01	14.900000000
1983-03-01	14.650000000
1983-04-01	14.550000000
1983-05-01	14.550000000
1983-06-01	14.520000000
1983-07-01	14.040000000
1983-08-01	13.960000000
1983-09-01	14.030000000
1983-10-01	14.150000000
1983-11-01	14.120000000
1983-12-01	13.960000000
1984-01-01	13.760000000
1984-02-01	13.870000000
1984-03-01	13.980000000
1984-04-01	13.810000000
1984-05-01	13.820000000
1984-06-01	13.990000000
1984-07-01	13.910000000
1984-08-01	13.580000000
1984-09-01	13.050000000
1984-10-01	12.020000000
1984-11-01	12.360000000
1984-12-01	12.700000000
1985-01-01	12.120000000
1985-02-01	12.250000000
1985-03-01	12.270000000
1985-04-01	11.980000000
1985-05-01	11.720000000
1985-06-01	12.120000000
1985-07-01	11.870000000
1985-08-01	11.960000000
1985-09-01	11.970000000
1985-10-01	11.590000000
1985-11-01	11.220000000
1985-12-01	11.330000000
1986-01-01	10.790000000
1986-02-01	10.100000000
1986-03-01	9.290000000
1986-04-01	8.560000000
1986-05-01	8.580000000
1986-06-01	8.650000000
1986-07-01	8.550000000
1986-08-01	8.050000000
1986-09-01	8.510000000
1986-10-01	8.970000000
1986-11-01	9.490000000
1986-12-01	9.890000000
1987-01-01	8.859047619
1987-02-01	9.209500000
1987-03-01	8.691363636
1987-04-01	8.631000000
1987-05-01	8.884285714
1987-06-01	9.289523810
1987-07-01	9.365714286
1987-08-01	9.811904762
1987-09-01	10.232272730
1987-10-01	10.745454550
1987-11-01	10.021052630
1987-12-01	10.002380950
1988-01-01	9.830500000
1988-02-01	9.134761905
1988-03-01	9.276956522
1988-04-01	9.200000000
1988-05-01	9.249090909
1988-06-01	8.936818182
1988-07-01	8.941428571
1988-08-01	9.207727273
1988-09-01	9.011818182
1988-10-01	8.769523810
1988-11-01	8.748571429
1988-12-01	8.701363636
1989-01-01	8.582105263
1989-02-01	9.033333333
1989-03-01	9.096190476
1989-04-01	8.842500000
1989-05-01	8.795500000
1989-06-01	8.687727273
1989-07-01	8.578421053
1989-08-01	8.376190476
1989-09-01	8.558095238
1989-10-01	8.822272727
1989-11-01	9.061904762
1989-12-01	9.118500000
1990-01-01	9.550454545
1990-02-01	10.030000000
1990-03-01	10.013181820
1990-04-01	9.623684211
1990-05-01	9.565000000
1990-06-01	9.724500000
1990-07-01	9.590000000
1990-08-01	10.115909090
1990-09-01	10.475000000
1990-10-01	10.376086960
1990-11-01	10.203181820
1990-12-01	9.918333333
1991-01-01	9.800000000
1991-02-01	9.142000000
1991-03-01	9.061000000
1991-04-01	8.893809524
1991-05-01	8.867368421
1991-06-01	9.120000000
1991-07-01	9.164782609
1991-08-01	9.091500000
1991-09-01	8.881428571
1991-10-01	8.798695652
1991-11-01	8.834736842
1991-12-01	8.804761905
1992-01-01	8.452608696
1992-02-01	8.495000000
1992-03-01	8.641818182
1992-04-01	8.697500000
1992-05-01	8.568888889
1992-06-01	8.740476190
1992-07-01	8.911428571
1992-08-01	9.043809524
1992-09-01	8.742272727
1992-10-01	8.425000000
1992-11-01	8.131578947
1992-12-01	8.204090909
1993-01-01	7.917000000
1993-02-01	7.770500000
1993-03-01	7.334782609
1993-04-01	7.152000000
1993-05-01	7.177777778
1993-06-01	6.954090909
1993-07-01	6.761428571
1993-08-01	6.310476190
1993-09-01	6.131818182
1993-10-01	5.958095238
1993-11-01	6.035000000
1993-12-01	5.796956522
1994-01-01	5.668571429
1994-02-01	5.942000000
1994-03-01	6.373913043
1994-04-01	6.685789474
1994-05-01	6.967000000
1994-06-01	7.485454545
1994-07-01	7.395263158
1994-08-01	7.609090909
1994-09-01	8.097272727
1994-10-01	8.187000000
1994-11-01	8.138500000
1994-12-01	8.015454545
1995-01-01	8.229523810
1995-02-01	8.008000000
1995-03-01	8.021304348
1995-04-01	7.821111111
1995-05-01	7.515500000
1995-06-01	7.454761905
1995-07-01	7.431000000
1995-08-01	7.328571429
1995-09-01	7.352857143
1995-10-01	7.481818182
1995-11-01	7.025714286
1995-12-01	6.749500000
1996-01-01	6.444090909
1996-02-01	6.592857143
1996-03-01	6.644761905
1996-04-01	6.498571429
1996-05-01	6.459473684
1996-06-01	6.547000000
1996-07-01	6.443478261
1996-08-01	6.343000000
1996-09-01	6.231428571
1996-10-01	5.969565217
1996-11-01	5.828947368
1996-12-01	5.742380952
1997-01-01	5.675909091
1997-02-01	5.460500000
1997-03-01	5.654736842
1997-04-01	5.803636364
1997-05-01	5.693684211
1997-06-01	5.650952381
1997-07-01	5.470909091
1997-08-01	5.583000000
1997-09-01	5.520454545
1997-10-01	5.590434783
1997-11-01	5.565000000
1997-12-01	5.320909091
1998-01-01	5.111428571
1998-02-01	5.031000000
1998-03-01	4.953181818
1998-04-01	4.957619048
1998-05-01	5.010000000
1998-06-01	4.860476190
1998-07-01	4.779047619
1998-08-01	4.522857143
1998-09-01	4.199545455
1998-10-01	4.170454545
1998-11-01	4.179523810
1998-12-01	3.907391304
1999-01-01	3.770000000
1999-02-01	3.929000000
1999-03-01	4.133478261
1999-04-01	3.976190476
1999-05-01	4.160000000
1999-06-01	4.474545455
1999-07-01	4.813181818
1999-08-01	5.010454545
1999-09-01	5.190000000
1999-10-01	5.433333333
1999-11-01	5.145714286
1999-12-01	5.269545455
2000-01-01	5.662380952
2000-02-01	5.615714286
2000-03-01	5.434782609
2000-04-01	5.332777778
2000-05-01	5.503181818
2000-06-01	5.323181818
2000-07-01	5.399047619
2000-08-01	5.360434783
2000-09-01	5.419047619
2000-10-01	5.355000000
2000-11-01	5.285454545
2000-12-01	5.042631579
2001-01-01	4.940454545
2001-02-01	4.931000000
2001-03-01	4.837727273
2001-04-01	5.000526316
2001-05-01	5.205909091
2001-06-01	5.150476190
2001-07-01	5.152272727
2001-08-01	4.953043478
2001-09-01	4.941500000
2001-10-01	4.719565217
2001-11-01	4.574545455
2001-12-01	4.866500000
2002-01-01	4.926818182
2002-02-01	4.994000000
2002-03-01	5.243000000
2002-04-01	5.242380952
2002-05-01	5.255238095
2002-06-01	5.112500000
2002-07-01	4.955217391
2002-08-01	4.673181818
2002-09-01	4.462380952
2002-10-01	4.552608696
2002-11-01	4.534000000
2002-12-01	4.383333333
2003-01-01	4.224090909
2003-02-01	4.012000000
2003-03-01	4.098095238
2003-04-01	4.220952381
2003-05-01	3.893809524
2003-06-01	3.693333333
2003-07-01	4.008260870
2003-08-01	4.162857143
2003-09-01	4.230000000
2003-10-01	4.283043478
2003-11-01	4.408500000
2003-12-01	4.335714286
2004-01-01	4.198095238
2004-02-01	4.143500000
2004-03-01	3.976086957
2004-04-01	4.182380952
2004-05-01	4.344285714
2004-06-01	4.393090909
2004-07-01	4.272318182
2004-08-01	4.112227273
2004-09-01	4.092181818
2004-10-01	3.975857143
2004-11-01	3.857227273
2004-12-01	3.642739130
2005-01-01	3.575380952
2005-02-01	3.599000000
2005-03-01	3.751380952
2005-04-01	3.542761905
2005-05-01	3.376772727
2005-06-01	3.201681818
2005-07-01	3.270000000
2005-08-01	3.298478261
2005-09-01	3.132045455
2005-10-01	3.289998619
2005-11-01	3.497203500
2005-12-01	3.378476190
2006-01-01	3.344090909
2006-02-01	3.508050000
2006-03-01	3.685391304
2006-04-01	3.953500000
2006-05-01	4.001363636
2006-06-01	4.006168091
2006-07-01	4.025238095
2006-08-01	3.897478261
2006-09-01	3.769380952
2006-10-01	3.807454545
2006-11-01	3.740990636
2006-12-01	3.809684211
2007-01-01	4.069409091
2007-02-01	4.095969800
2007-03-01	3.996772727
2007-04-01	4.207944368
2007-05-01	4.336848182
2007-06-01	4.618952381
2007-07-01	4.582909091
2007-08-01	4.388880522
2007-09-01	4.356660950
2007-10-01	4.402217391
2007-11-01	4.227727273
2007-12-01	4.354105263
2008-01-01	4.149954545
2008-02-01	4.079190476
2008-03-01	4.019400000
2008-04-01	4.269909091
2008-05-01	4.405857143
2008-06-01	4.733714286
2008-07-01	4.690288826
2008-08-01	4.401809524
2008-09-01	4.361863636
2008-10-01	4.183565217
2008-11-01	3.976700000
2008-12-01	3.539500000
2009-01-01	3.601610571
2009-02-01	3.678137400
2009-03-01	3.647409091
2009-04-01	3.659142857
2009-05-01	3.804453000
2009-06-01	3.899661455
2009-07-01	3.732862870
2009-08-01	3.587428571
2009-09-01	3.586869318
2009-10-01	3.557895182
2009-11-01	3.555156095
2009-12-01	3.475064227
2010-01-01	3.515700000
2010-02-01	3.498050000
2010-03-01	3.437391304
2010-04-01	3.401619048
2010-05-01	3.075666667
2010-06-01	3.073212864
2010-07-01	2.988031455
2010-08-01	2.678454545
2010-09-01	2.678318182
2010-10-01	2.718658286
2010-11-01	2.997419273
2010-12-01	3.341565217
2011-01-01	3.442857143
2011-02-01	3.603250000
2011-03-01	3.609609043
2011-04-01	3.689994500
2011-05-01	3.489244227
2011-06-01	3.430549955
2011-07-01	3.399364524
2011-08-01	2.984460217
2011-09-01	2.644395273
2011-10-01	2.992523810
2011-11-01	3.407547364
2011-12-01	3.158900762
2012-01-01	3.179681818
2012-02-01	3.015761905
2012-03-01	2.954181818
2012-04-01	2.993500000
2012-05-01	2.751820864
2012-06-01	2.569428571
2012-07-01	2.275192909
2012-08-01	2.119434783
2012-09-01	2.237201400
2012-10-01	2.185697870
2012-11-01	2.139681818
2012-12-01	2.010344316
2013-01-01	2.165192409
2013-02-01	2.244584100
2013-03-01	2.070982000
2013-04-01	1.802820095
2013-05-01	1.872818182
2013-06-01	2.210651650
2013-07-01	2.246758609
2013-08-01	2.362363636
2013-09-01	2.485809524
2013-10-01	2.394347826
2013-11-01	2.265000000
2013-12-01	2.330750000
2014-01-01	2.384136364
2014-02-01	2.252750000
2014-03-01	2.151857143
2014-04-01	2.025714286
2014-05-01	1.838400000
2014-06-01	1.711857143
2014-07-01	1.559000000
2014-08-01	1.406380952
2014-09-01	1.350818182
2014-10-01	1.259782609
2014-11-01	1.135800000
2014-12-01	0.920772727
2015-01-01	0.674095238
2015-02-01	0.596850000
2015-03-01	0.509285714
2015-04-01	0.435000000
2015-05-01	0.888850000
2015-06-01	1.195523810
2015-07-01	1.113608696
2015-08-01	1.005052632
2015-09-01	1.004636364
2015-10-01	0.865227273
2015-11-01	0.883142857
2015-12-01	0.931200000
2016-01-01	0.842850000
2016-02-01	0.592285714
2016-03-01	0.509333333
2016-04-01	0.514238095
2016-05-01	0.509428571
2016-06-01	0.389954545
2016-07-01	0.171380952
2016-08-01	0.153434783
2016-09-01	0.183681818
2016-10-01	0.330900000
2016-11-01	0.667318182
2016-12-01	0.749761905
2017-01-01	0.863090909
2017-02-01	1.030700000
2017-03-01	1.021608696
2017-04-01	0.890470588
2017-05-01	0.805666667
2017-06-01	0.664090909
2017-07-01	0.835894737
2017-08-01	0.714571429
2017-09-01	0.700000000
2017-10-01	0.810000000
2017-11-01	0.720000000
2017-12-01	0.670000000
2018-01-01	0.860000000
2018-02-01	0.980000000
2018-03-01	0.840000000
2018-04-01	0.780000000
2018-05-01	0.780000000
2018-06-01	0.750000000
2018-07-01	0.670000000
2018-08-01	0.700000000
2018-09-01	0.770000000