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1997-11-01 00:00:00+00 -4.742 19 1997-12-01 00:00:00+00 -4.279 19 1998-01-01 00:00:00+00 -4.084 20 1998-02-01 00:00:00+00 -3.967 20 1998-03-01 00:00:00+00 -3.789 20 1998-04-01 00:00:00+00 -6.137 20 1998-05-01 00:00:00+00 -7.722 20 1998-06-01 00:00:00+00 -7.081 20 1998-07-01 00:00:00+00 -6.136 20 1998-08-01 00:00:00+00 -7.224 20 1998-09-01 00:00:00+00 -6.127 20 1998-10-01 00:00:00+00 -5.284 20 1998-11-01 00:00:00+00 -5.951 20 1998-12-01 00:00:00+00 -6.864 20 1999-01-01 00:00:00+00 -8.279 20 1999-02-01 00:00:00+00 -8.526 20 1999-03-01 00:00:00+00 -8.158 20 1999-04-01 00:00:00+00 -7.647 20 1999-05-01 00:00:00+00 -7.989 20 1999-06-01 00:00:00+00 -7.103 20 1999-07-01 00:00:00+00 -6.513 20 1999-08-01 00:00:00+00 -8.745 20 1999-09-01 00:00:00+00 -10.539 20 1999-10-01 00:00:00+00 -11.688 20 1999-11-01 00:00:00+00 -12.171 20 1999-12-01 00:00:00+00 -12.818 20 2000-01-01 00:00:00+00 -12.111 19 2000-02-01 00:00:00+00 -12.965 19 2000-03-01 00:00:00+00 -14.327 19 2000-04-01 00:00:00+00 -13.993 20 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2007-10-01 00:00:00+00 -2.393 22 2007-11-01 00:00:00+00 -2.673 22 2007-12-01 00:00:00+00 -2.313 22 2008-01-01 00:00:00+00 -2.670 22 2008-02-01 00:00:00+00 -2.769 22 2008-03-01 00:00:00+00 -2.648 22 2008-04-01 00:00:00+00 -2.573 22 2008-05-01 00:00:00+00 -2.561 22 2008-06-01 00:00:00+00 -2.336 22 2008-07-01 00:00:00+00 -2.263 22 2008-08-01 00:00:00+00 -1.903 21 2008-09-01 00:00:00+00 -1.477 23 2008-10-01 00:00:00+00 -1.374 23 2008-11-01 00:00:00+00 -1.232 23 2008-12-01 00:00:00+00 -1.110 23 2009-01-01 00:00:00+00 -0.483 47 2009-02-01 00:00:00+00 -0.789 22 2009-03-01 00:00:00+00 -0.549 22 2009-04-01 00:00:00+00 0.028 22 2009-05-01 00:00:00+00 0.232 22 2009-06-01 00:00:00+00 0.235 22 2009-07-01 00:00:00+00 0.269 22 2009-08-01 00:00:00+00 0.151 22 2009-09-01 00:00:00+00 0.363 22 2009-10-01 00:00:00+00 0.502 22 2009-11-01 00:00:00+00 0.327 22 2009-12-01 00:00:00+00 0.396 22 2010-01-01 00:00:00+00 -0.070 21 2010-02-01 00:00:00+00 -1.403 22 2010-03-01 00:00:00+00 -1.719 22 2010-04-01 00:00:00+00 -2.796 22 2010-05-01 00:00:00+00 -2.383 22 2010-06-01 00:00:00+00 -2.493 22 2010-07-01 00:00:00+00 -2.338 22 2010-08-01 00:00:00+00 -2.948 22 2010-09-01 00:00:00+00 -3.026 23 2010-10-01 00:00:00+00 -2.983 23 2010-11-01 00:00:00+00 -3.373 23 2010-12-01 00:00:00+00 -3.748 23 2011-01-01 00:00:00+00 -3.375 23 2011-02-01 00:00:00+00 -3.265 23 2011-03-01 00:00:00+00 -4.451 23 2011-04-01 00:00:00+00 -6.334 23 2011-05-01 00:00:00+00 -5.123 23 2011-06-01 00:00:00+00 -7.311 23 2011-07-01 00:00:00+00 -6.385 23 2011-08-01 00:00:00+00 -6.175 22 2011-09-01 00:00:00+00 -6.394 22 2011-10-01 00:00:00+00 -7.112 22 2011-11-01 00:00:00+00 -6.002 22 2011-12-01 00:00:00+00 -4.777 22 2012-01-01 00:00:00+00 -5.570 21 2012-02-01 00:00:00+00 -6.723 22 2012-03-01 00:00:00+00 -9.482 22 2012-04-01 00:00:00+00 -6.542 22 2012-05-01 00:00:00+00 -6.172 22 2012-06-01 00:00:00+00 -7.459 22 2012-07-01 00:00:00+00 -9.770 23 2012-08-01 00:00:00+00 -9.350 23 2012-09-01 00:00:00+00 -8.000 23 2012-10-01 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00:00:00+00 -11.130 24 2015-05-01 00:00:00+00 -9.506 23 2015-06-01 00:00:00+00 -9.664 23 2015-07-01 00:00:00+00 -8.552 23 2015-08-01 00:00:00+00 -8.323 23 2015-09-01 00:00:00+00 -8.354 23 2015-10-01 00:00:00+00 -8.214 23 2015-11-01 00:00:00+00 -8.033 23 2015-12-01 00:00:00+00 -7.594 23 2016-01-01 00:00:00+00 -6.315 23 2016-02-01 00:00:00+00 -5.431 23 2016-03-01 00:00:00+00 -5.484 23 2016-04-01 00:00:00+00 -5.461 23 2016-05-01 00:00:00+00 -4.974 23 2016-06-01 00:00:00+00 -4.369 23 2016-07-01 00:00:00+00 -4.514 23 2016-08-01 00:00:00+00 -3.927 23 2016-09-01 00:00:00+00 -3.821 23 2016-10-01 00:00:00+00 -3.076 20 2016-11-01 00:00:00+00 -2.851 20 2016-12-01 00:00:00+00 -2.609 20 2017-01-01 00:00:00+00 -2.149 19 2017-02-01 00:00:00+00 -1.725 19 2017-03-01 00:00:00+00 -1.239 18