Month	Percent
1960-01-01	5.400000000
1960-02-01	5.230000000
1960-03-01	4.120000000
1960-04-01	4.290000000
1960-05-01	3.780000000
1960-06-01	3.870000000
1960-07-01	3.780000000
1960-08-01	3.020000000
1960-09-01	2.520000000
1960-10-01	3.450000000
1960-11-01	4.210000000
1960-12-01	4.290000000
1961-01-01	3.780000000
1961-02-01	3.530000000
1961-03-01	3.780000000
1961-04-01	3.530000000
1961-05-01	3.780000000
1961-06-01	3.280000000
1961-07-01	3.020000000
1961-08-01	3.280000000
1961-09-01	3.110000000
1961-10-01	3.020000000
1961-11-01	2.850000000
1961-12-01	3.450000000
1962-01-01	3.514000000
1962-02-01	3.382500000
1962-03-01	3.310000000
1962-04-01	3.417500000
1962-05-01	3.546000000
1962-06-01	4.127500000
1962-07-01	5.697500000
1962-08-01	5.698000000
1962-09-01	5.445000000
1962-10-01	4.964000000
1962-11-01	4.380000000
1962-12-01	4.312500000
1963-01-01	4.248000000
1963-02-01	4.162500000
1963-03-01	4.155000000
1963-04-01	3.807500000
1963-05-01	3.582000000
1963-06-01	3.627500000
1963-07-01	3.806000000
1963-08-01	4.167500000
1963-09-01	4.130000000
1963-10-01	4.000000000
1963-11-01	4.115000000
1963-12-01	4.327500000
1964-01-01	4.202000000
1964-02-01	4.060000000
1964-03-01	4.170000000
1964-04-01	4.118000000
1964-05-01	4.050000000
1964-06-01	4.020000000
1964-07-01	4.032000000
1964-08-01	4.222500000
1964-09-01	4.308000000
1964-10-01	4.380000000
1964-11-01	4.360000000
1964-12-01	4.590000000
1965-01-01	4.362500000
1965-02-01	4.370000000
1965-03-01	4.444000000
1965-04-01	4.480000000
1965-05-01	4.685000000
1965-06-01	4.816000000
1965-07-01	4.900000000
1965-08-01	5.170000000
1965-09-01	5.226000000
1965-10-01	5.340000000
1965-11-01	5.650000000
1965-12-01	5.960000000
1966-01-01	6.047500000
1966-02-01	6.020000000
1966-03-01	6.050000000
1966-04-01	6.055000000
1966-05-01	6.137500000
1966-06-01	6.244000000
1966-07-01	6.317500000
1966-08-01	6.344000000
1966-09-01	6.405000000
1966-10-01	6.382500000
1966-11-01	6.470000000
1966-12-01	6.602500000
1967-01-01	6.440000000
1967-02-01	6.037500000
1967-03-01	5.566000000
1967-04-01	5.010000000
1967-05-01	5.046000000
1967-06-01	5.422500000
1967-07-01	5.587500000
1967-08-01	5.630000000
1967-09-01	5.825000000
1967-10-01	6.502500000
1967-11-01	6.524000000
1967-12-01	6.575000000
1968-01-01	6.578000000
1968-02-01	6.800000000
1968-03-01	7.137500000
1968-04-01	7.257500000
1968-05-01	7.350000000
1968-06-01	7.327500000
1968-07-01	7.118000000
1968-08-01	6.722500000
1968-09-01	6.215000000
1968-10-01	6.318000000
1968-11-01	6.447500000
1968-12-01	6.550000000
1969-01-01	6.858000000
1969-02-01	6.885000000
1969-03-01	6.952500000
1969-04-01	7.064000000
1969-05-01	7.132500000
1969-06-01	7.597500000
1969-07-01	8.082000000
1969-08-01	8.355000000
1969-09-01	8.430000000
1969-10-01	8.550000000
1969-11-01	8.602500000
1969-12-01	9.030000000
1970-01-01	9.065000000
1970-02-01	8.575000000
1970-03-01	8.237500000
1970-04-01	7.738000000
1970-05-01	7.855000000
1970-06-01	7.327500000
1970-07-01	7.624000000
1970-08-01	7.627500000
1970-09-01	6.860000000
1970-10-01	6.835000000
1970-11-01	6.120000000
1970-12-01	5.582000000
1971-01-01	5.775000000
1971-02-01	5.472500000
1971-03-01	4.092000000
1971-04-01	3.745000000
1971-05-01	3.902500000
1971-06-01	3.910000000
1971-07-01	4.437500000
1971-08-01	4.545000000
1971-09-01	4.796000000
1971-10-01	5.155000000
1971-11-01	4.605000000
1971-12-01	4.396000000
1972-01-01	4.062500000
1972-02-01	4.497500000
1972-03-01	5.256000000
1972-04-01	5.752500000
1972-05-01	6.018000000
1972-06-01	5.515000000
1972-07-01	4.980000000
1972-08-01	4.836000000
1972-09-01	5.025000000
1972-10-01	5.025000000
1972-11-01	5.124000000
1972-12-01	5.085000000
1973-01-01	5.116000000
1973-02-01	4.937500000
1973-03-01	5.102500000
1973-04-01	5.582500000
1973-05-01	6.350000000
1973-06-01	7.085000000
1973-07-01	7.705000000
1973-08-01	8.310000000
1973-09-01	8.802500000
1973-10-01	9.350000000
1973-11-01	9.350000000
1973-12-01	9.925000000
1974-01-01	9.468000000
1974-02-01	8.745000000
1974-03-01	8.907500000
1974-04-01	10.417500000
1974-05-01	11.782000000
1974-06-01	11.375000000
1974-07-01	11.648000000
1974-08-01	11.805000000
1974-09-01	11.540000000
1974-10-01	10.752000000
1974-11-01	9.795000000
1974-12-01	10.417500000
1975-01-01	8.476000000
1975-02-01	6.895000000
1975-03-01	6.770000000
1975-04-01	7.094000000
1975-05-01	7.510000000
1975-06-01	7.282500000
1975-07-01	7.484000000
1975-08-01	8.355000000
1975-09-01	8.940000000
1975-10-01	8.888000000
1975-11-01	9.172500000
1975-12-01	9.418000000
1976-01-01	9.040000000
1976-02-01	8.907500000
1976-03-01	9.806000000
1976-04-01	9.730000000
1976-05-01	9.435000000
1976-06-01	9.390000000
1976-07-01	9.340000000
1976-08-01	9.340000000
1976-09-01	9.470000000
1976-10-01	9.270000000
1976-11-01	9.040000000
1976-12-01	8.550000000
1977-01-01	8.127500000
1977-02-01	7.835000000
1977-03-01	7.770000000
1977-04-01	7.640000000
1977-05-01	7.380000000
1977-06-01	7.042000000
1977-07-01	7.185000000
1977-08-01	7.510000000
1977-09-01	7.315000000
1977-10-01	7.380000000
1977-11-01	7.458000000
1977-12-01	7.272500000
1978-01-01	7.167500000
1978-02-01	7.267500000
1978-03-01	7.570000000
1978-04-01	8.357500000
1978-05-01	8.172000000
1978-06-01	8.357500000
1978-07-01	8.447500000
1978-08-01	8.942000000
1978-09-01	9.270000000
1978-10-01	9.780000000
1978-11-01	10.626000000
1978-12-01	10.607500000
1979-01-01	10.970000000
1979-02-01	11.005000000
1979-03-01	11.110000000
1979-04-01	11.240000000
1979-05-01	11.286000000
1979-06-01	11.190000000
1979-07-01	11.262500000
1979-08-01	11.790000000
1979-09-01	12.000000000
1979-10-01	13.470000000
1979-11-01	14.162500000
1979-12-01	14.050000000
1980-01-01	13.910000000
1980-02-01	14.037500000
1980-03-01	14.725000000
1980-04-01	16.130000000
1980-05-01	12.975000000
1980-06-01	11.637500000
1980-07-01	11.030000000
1980-08-01	10.562500000
1980-09-01	10.762500000
1980-10-01	11.670000000
1980-11-01	13.087500000
1980-12-01	17.020000000
1981-01-01	17.012500000
1981-02-01	17.475000000
1981-03-01	16.962500000
1981-04-01	17.220000000
1981-05-01	18.975000000
1981-06-01	19.250000000
1981-07-01	19.660000000
1981-08-01	22.012500000
1981-09-01	20.540000000
1981-10-01	18.787500000
1981-11-01	16.612500000
1981-12-01	16.000000000
1982-01-01	15.025000000
1982-02-01	15.325000000
1982-03-01	15.740000000
1982-04-01	15.737500000
1982-05-01	15.537500000
1982-06-01	16.880000000
1982-07-01	16.262500000
1982-08-01	14.762500000
1982-09-01	13.610000000
1982-10-01	12.012500000
1982-11-01	11.050000000
1982-12-01	10.560000000
1983-01-01	9.887500000
1983-02-01	9.750000000
1983-03-01	9.370000000
1983-04-01	9.362500000
1983-05-01	9.225000000
1983-06-01	9.350000000
1983-07-01	9.350000000
1983-08-01	9.440000000
1983-09-01	9.325000000
1983-10-01	9.300000000
1983-11-01	9.380000000
1983-12-01	9.850000000
1984-01-01	9.837500000
1984-02-01	9.830000000
1984-03-01	10.350000000
1984-04-01	10.700000000
1984-05-01	11.430000000
1984-06-01	11.775000000
1984-07-01	12.912500000
1984-08-01	12.380000000
1984-09-01	12.175000000
1984-10-01	11.950000000
1984-11-01	10.987500000
1984-12-01	10.337500000
1985-01-01	9.670000000
1985-02-01	10.575000000
1985-03-01	11.300000000
1985-04-01	10.162500000
1985-05-01	9.750000000
1985-06-01	9.487500000
1985-07-01	9.260000000
1985-08-01	9.112500000
1985-09-01	9.062500000
1985-10-01	8.710000000
1985-11-01	8.825000000
1985-12-01	9.237500000
1986-01-01	10.160000000
1986-02-01	11.725000000
1986-03-01	11.025000000
1986-04-01	9.550000000
1986-05-01	8.575000000
1986-06-01	8.700000000
1986-07-01	8.470000000
1986-08-01	8.512500000
1986-09-01	8.350000000
1986-10-01	8.440000000
1986-11-01	8.387500000
1986-12-01	8.360000000
1987-01-01	7.925000000
1987-02-01	7.437500000
1987-03-01	7.175000000
1987-04-01	7.620000000
1987-05-01	8.250000000
1987-06-01	8.462500000
1987-07-01	8.640000000
1987-08-01	9.137500000
1987-09-01	9.360000000
1987-10-01	9.162500000
1987-11-01	8.775000000
1987-12-01	8.970000000
1988-01-01	8.712500000
1988-02-01	8.550000000
1988-03-01	8.590000000
1988-04-01	8.862500000
1988-05-01	9.037500000
1988-06-01	9.370000000
1988-07-01	9.412500000
1988-08-01	9.910000000
1988-09-01	10.475000000
1988-10-01	10.437500000
1988-11-01	10.850000000
1988-12-01	11.112500000
1989-01-01	11.287500000
1989-02-01	11.562500000
1989-03-01	12.210000000
1989-04-01	12.475000000
1989-05-01	12.402000000
1989-06-01	12.312500000
1989-07-01	12.225000000
1989-08-01	12.292000000
1989-09-01	12.327500000
1989-10-01	12.330000000
1989-11-01	12.352000000
1989-12-01	12.345000000
1990-01-01	12.244000000
1990-02-01	12.842500000
1990-03-01	13.357500000
1990-04-01	13.515000000
1990-05-01	13.760000000
1990-06-01	13.817500000
1990-07-01	13.675000000
1990-08-01	13.256000000
1990-09-01	12.755000000
1990-10-01	12.578000000
1990-11-01	12.405000000
1990-12-01	12.050000000
1991-01-01	11.366000000
1991-02-01	10.520000000
1991-03-01	9.957500000
1991-04-01	9.707500000
1991-05-01	9.198000000
1991-06-01	8.832500000
1991-07-01	8.760000000
1991-08-01	8.722500000
1991-09-01	8.590000000
1991-10-01	8.366000000
1991-11-01	7.847500000
1991-12-01	7.455000000
1992-01-01	7.310000000
1992-02-01	7.252500000
1992-03-01	7.540000000
1992-04-01	7.118000000
1992-05-01	6.617500000
1992-06-01	6.032500000
1992-07-01	5.574000000
1992-08-01	5.172500000
1992-09-01	5.038000000
1992-10-01	7.637500000
1992-11-01	6.932500000
1992-12-01	7.900000000
1993-01-01	6.992500000
1993-02-01	6.395000000
1993-03-01	5.610000000
1993-04-01	5.275000000
1993-05-01	5.325000000
1993-06-01	4.880000000
1993-07-01	4.472500000
1993-08-01	4.307500000
1993-09-01	4.786000000
1993-10-01	4.737500000
1993-11-01	4.362500000
1993-12-01	4.092000000
1994-01-01	3.872500000
1994-02-01	3.805000000
1994-03-01	4.206000000
1994-04-01	5.887500000
1994-05-01	6.285000000
1994-06-01	6.394000000
1994-07-01	6.362500000
1994-08-01	5.680000000
1994-09-01	5.642500000
1994-10-01	5.440000000
1994-11-01	5.680000000
1994-12-01	6.597500000
1995-01-01	7.838000000
1995-02-01	8.118000000
1995-03-01	8.314782609
1995-04-01	8.148421053
1995-05-01	7.561363636
1995-06-01	7.047727273
1995-07-01	6.666000000
1995-08-01	6.586818182
1995-09-01	6.687500000
1995-10-01	6.697619048
1995-11-01	6.008095238
1995-12-01	5.895263158
1996-01-01	5.546818182
1996-02-01	5.222857143
1996-03-01	5.214761905
1996-04-01	5.008571429
1996-05-01	4.809090909
1996-06-01	4.849000000
1996-07-01	4.732727273
1996-08-01	4.267619048
1996-09-01	4.078500000
1996-10-01	3.516818182
1996-11-01	3.019500000
1996-12-01	3.122500000
1997-01-01	3.152727273
1997-02-01	3.116000000
1997-03-01	3.217500000
1997-04-01	3.460454545
1997-05-01	3.321904762
1997-06-01	3.265238095
1997-07-01	3.531818182
1997-08-01	3.638000000
1997-09-01	3.626666667
1997-10-01	3.799545455
1997-11-01	3.994736842
1997-12-01	4.567142857
1998-01-01	4.651904762
1998-02-01	4.977500000
1998-03-01	4.874090909
1998-04-01	4.898095238
1998-05-01	5.020000000
1998-06-01	5.016818182
1998-07-01	5.051363636
1998-08-01	5.305500000
1998-09-01	5.600476190
1998-10-01	5.275238095
1998-11-01	5.147000000
1998-12-01	5.002857143
1999-01-01	5.004500000
1999-02-01	5.033500000
1999-03-01	5.057391304
1999-04-01	4.716666667
1999-05-01	4.615500000
1999-06-01	4.815454545
1999-07-01	4.792857143
1999-08-01	4.924761905
1999-09-01	4.830476190
1999-10-01	5.014000000
1999-11-01	5.040952381
1999-12-01	5.135238095
2000-01-01	5.260500000
2000-02-01	5.312380952
2000-03-01	5.405652174
2000-04-01	5.516315789
2000-05-01	5.861818182
2000-06-01	5.917272727
2000-07-01	5.878500000
2000-08-01	5.892727273
2000-09-01	5.851500000
2000-10-01	5.844761905
2000-11-01	5.876666667
2000-12-01	5.763684211
2001-01-01	5.456363636
2001-02-01	5.207500000
2001-03-01	4.748181818
2001-04-01	4.602500000
2001-05-01	4.445909091
2001-06-01	4.419523810
2001-07-01	4.304285714
2001-08-01	4.062727273
2001-09-01	3.497894737
2001-10-01	2.896363636
2001-11-01	2.284761905
2001-12-01	2.117368421
2002-01-01	2.014090909
2002-02-01	2.116000000
2002-03-01	2.240500000
2002-04-01	2.402727273
2002-05-01	2.610909091
2002-06-01	2.789000000
2002-07-01	2.875909091
2002-08-01	2.945714286
2002-09-01	2.915500000
2002-10-01	2.880909091
2002-11-01	2.836000000
2002-12-01	2.857000000
2003-01-01	2.870000000
2003-02-01	2.921000000
2003-03-01	3.201904762
2003-04-01	3.301904762
2003-05-01	3.322857143
2003-06-01	3.215714286
2003-07-01	3.010454545
2003-08-01	2.854210526
2003-09-01	2.712857143
2003-10-01	2.695000000
2003-11-01	2.760000000
2003-12-01	2.707142857
2004-01-01	2.508095238
2004-02-01	2.323000000
2004-03-01	2.159565217
2004-04-01	2.068571429
2004-05-01	2.067500000
2004-06-01	2.101818182
2004-07-01	2.105238095
2004-08-01	2.145238095
2004-09-01	2.412857143
2004-10-01	2.575000000
2004-11-01	2.703809524
2004-12-01	2.571904762
2005-01-01	2.564000000
2005-02-01	2.582500000
2005-03-01	2.625909091
2005-04-01	2.584761905
2005-05-01	2.586190476
2005-06-01	2.583181818
2005-07-01	2.631000000
2005-08-01	2.770000000
2005-09-01	2.890000000
2005-10-01	3.099000000
2005-11-01	3.295714286
2005-12-01	3.469000000
2006-01-01	3.618571429
2006-02-01	3.763000000
2006-03-01	3.940869565
2006-04-01	4.122631579
2006-05-01	4.258636364
2006-06-01	4.417727273
2006-07-01	4.378000000
2006-08-01	4.344090909
2006-09-01	4.321500000
2006-10-01	4.327619048
2006-11-01	4.312380952
2006-12-01	4.320588235
2007-01-01	4.333636364
2007-02-01	4.348000000
2007-03-01	4.345909091
2007-04-01	4.350000000
2007-05-01	4.368636364
2007-06-01	4.529523810
2007-07-01	4.680000000
2007-08-01	4.947272727
2007-09-01	5.119473684
2007-10-01	4.915000000
2007-11-01	4.767619048
2007-12-01	4.796315789
2008-01-01	4.246363636
2008-02-01	3.820000000
2008-03-01	3.583000000
2008-04-01	3.457000000
2008-05-01	3.150500000
2008-06-01	3.177647059
2008-07-01	3.267000000
2008-08-01	3.230000000
2008-09-01	3.716666667
2008-10-01	3.318636364
2008-11-01	2.776315789
2008-12-01	2.344285714
2009-01-01	1.589047619
2009-02-01	1.231052632
2009-03-01	1.062727273
2009-04-01	0.898095238
2009-05-01	0.636500000
2009-06-01	0.560000000
2009-07-01	0.383636364
2009-08-01	0.420500000
2009-09-01	0.398095238
2009-10-01	0.386666667
2009-11-01	0.380500000
2009-12-01	0.379047619
2010-01-01	0.380000000
2010-02-01	0.375789474
2010-03-01	0.385652174
2010-04-01	0.487619048
2010-05-01	0.603500000
2010-06-01	0.724090909
2010-07-01	0.832857143
2010-08-01	0.902857143
2010-09-01	1.114285714
2010-10-01	1.157000000
2010-11-01	1.167142857
2010-12-01	1.179523810
2011-01-01	1.180000000
2011-02-01	1.188421053
2011-03-01	1.183913043
2011-04-01	1.184000000
2011-05-01	1.187142857
2011-06-01	1.169545455
2011-07-01	1.170000000
2011-08-01	1.151818182
2011-09-01	1.150000000
2011-10-01	1.151500000
2011-11-01	1.159523810
2011-12-01	1.156000000
2012-01-01	1.158571429
2012-02-01	1.160000000
2012-03-01	1.152272727
2012-04-01	1.147000000
2012-05-01	1.179545455
2012-06-01	1.160952381
2012-07-01	1.160000000
2012-08-01	1.160000000
2012-09-01	1.160000000
2012-10-01	1.160000000
2012-11-01	1.160000000
2012-12-01	1.160000000
2013-01-01	1.160000000
2013-02-01	1.160000000
2013-03-01	1.160000000
2013-04-01	1.160000000
2013-05-01	1.160000000
2013-06-01	1.162000000
2013-07-01	1.167272727
2013-08-01	1.170000000
2013-09-01	1.168000000
2013-10-01	1.166818182
2013-11-01	1.170000000
2013-12-01	1.169000000
2014-01-01	1.170000000
2014-02-01	1.170000000
2014-03-01	1.170000000
2014-04-01	1.170000000
2014-05-01	1.177619048
2014-06-01	1.174285714
2014-07-01	1.170000000
2014-08-01	1.170000000
2014-09-01	1.170000000
2014-10-01	1.170000000
2014-11-01	1.175263158
2014-12-01	1.188571429
2015-01-01	1.122857143
2015-02-01	0.886315789
2015-03-01	0.893636364
2015-04-01	0.896190476
2015-05-01	0.890000000
2015-06-01	0.890000000
2015-07-01	0.740454545
2015-08-01	0.610000000
2015-09-01	0.651904762
2015-10-01	0.714761905
2015-11-01	0.758500000
2015-12-01	0.817142857
2016-01-01	0.796500000
2016-02-01	0.799000000
2016-03-01	0.800000000
2016-04-01	0.836190476
2016-05-01	0.836666667
2016-06-01	0.827727273
2016-07-01	0.810500000
2016-08-01	0.820000000
2016-09-01	0.810952381
2016-10-01	0.816000000
2016-11-01	0.820000000
2016-12-01	0.823000000
2017-01-01	0.872380952
2017-02-01	0.876842105
2017-03-01	0.845652174
2017-04-01	0.843157895
2017-05-01	0.797727273
2017-06-01	0.828636364
2017-07-01	1.123000000
2017-08-01	1.198636364
2017-09-01	1.321000000
2017-10-01	1.329047619
2017-11-01	1.328095238
2017-12-01	1.372105263
2018-01-01	1.552727273
2018-02-01	1.547894737
2018-03-01	1.596190476
2018-04-01	1.639047619
2018-05-01	1.650000000
2018-06-01	1.650000000
2018-07-01	1.796190476
2018-08-01	1.842727273
2018-09-01	1.874736842
2018-10-01	2.013181818