Month Percent of Capacity, Seasonally Adjusted 1987-01-01 74.956425948 1987-02-01 75.689801769 1987-03-01 76.342735439 1987-04-01 77.160870837 1987-05-01 77.431260947 1987-06-01 77.907386957 1987-07-01 78.247976028 1987-08-01 77.766547869 1987-09-01 77.336640993 1987-10-01 77.223696961 1987-11-01 77.317152048 1987-12-01 77.684141690 1988-01-01 77.751827393 1988-02-01 77.292270777 1988-03-01 76.625947826 1988-04-01 76.342844036 1988-05-01 75.522211434 1988-06-01 74.894965177 1988-07-01 74.239776690 1988-08-01 73.884613190 1988-09-01 73.471507077 1988-10-01 73.479343459 1988-11-01 73.182637948 1988-12-01 73.146460438 1989-01-01 72.720334454 1989-02-01 72.599596540 1989-03-01 72.232402054 1989-04-01 72.162665061 1989-05-01 72.455281432 1989-06-01 72.962451735 1989-07-01 73.445119275 1989-08-01 74.358813323 1989-09-01 75.202927094 1989-10-01 76.365142480 1989-11-01 75.890665021 1989-12-01 75.668312071 1990-01-01 75.051230369 1990-02-01 75.767103112 1990-03-01 76.117258871 1990-04-01 76.949140270 1990-05-01 75.622610166 1990-06-01 74.782595028 1990-07-01 73.819437249 1990-08-01 73.898465250 1990-09-01 73.882176096 1990-10-01 74.156537691 1990-11-01 73.188877144 1990-12-01 72.541405223 1991-01-01 71.588100399 1991-02-01 72.906013045 1991-03-01 73.735215544 1991-04-01 75.123684833 1991-05-01 74.364796354 1991-06-01 73.997918222 1991-07-01 73.444259700 1991-08-01 73.102120597 1991-09-01 72.765174093 1991-10-01 72.630363132 1991-11-01 73.037365930 1991-12-01 73.687478496 1992-01-01 74.253210971 1992-02-01 74.607099573 1992-03-01 74.619537951 1992-04-01 74.967089211 1992-05-01 75.285026595 1992-06-01 75.782862292 1992-07-01 76.235924748 1992-08-01 75.984448285 1992-09-01 75.763150922 1992-10-01 75.628924145 1992-11-01 75.848897518 1992-12-01 76.212502609 1993-01-01 76.684798057 1993-02-01 77.259452867 1993-03-01 77.735971506 1993-04-01 78.223855241 1993-05-01 78.458729514 1993-06-01 78.815013095 1993-07-01 78.967247636 1993-08-01 78.880268278 1993-09-01 78.888835121 1993-10-01 78.871070719 1993-11-01 77.984778220 1993-12-01 77.050982681 1994-01-01 76.361931218 1994-02-01 73.051239480 1994-03-01 69.665037782 1994-04-01 66.314394933 1994-05-01 67.915540256 1994-06-01 69.584180625 1994-07-01 70.954617911 1994-08-01 71.856625658 1994-09-01 72.695270885 1994-10-01 73.635094039 1994-11-01 74.260461511 1994-12-01 74.876563185 1995-01-01 75.678706522 1995-02-01 76.744643026 1995-03-01 77.818499432 1995-04-01 78.851955769 1995-05-01 78.586174581 1995-06-01 78.241977243 1995-07-01 77.719442838 1995-08-01 77.391342722 1995-09-01 77.120887068 1995-10-01 76.812551929 1995-11-01 76.917733075 1995-12-01 77.009303257 1996-01-01 77.126071758 1996-02-01 77.094464226 1996-03-01 77.074763197 1996-04-01 76.989683406 1996-05-01 76.692176309 1996-06-01 76.447383893 1996-07-01 76.095205408 1996-08-01 76.261029854 1996-09-01 76.490624465 1996-10-01 76.682126514 1996-11-01 76.943807400 1996-12-01 77.193448834 1997-01-01 77.293658902 1997-02-01 77.730655704 1997-03-01 77.964330406 1997-04-01 78.432366416 1997-05-01 78.388700070 1997-06-01 78.659557214 1997-07-01 78.884403573 1997-08-01 78.495938017 1997-09-01 78.146857821 1997-10-01 77.644843729 1997-11-01 77.907257611 1997-12-01 77.980189207 1998-01-01 77.806026604 1998-02-01 77.011695158 1998-03-01 75.695399790 1998-04-01 75.109744462 1998-05-01 74.948625655 1998-06-01 75.189538359 1998-07-01 75.405495693 1998-08-01 74.619959830 1998-09-01 73.818510599 1998-10-01 72.858077121 1998-11-01 72.304253551 1998-12-01 71.695417288 1999-01-01 70.791855980 1999-02-01 72.265087324 1999-03-01 72.977941045 1999-04-01 74.816989009 1999-05-01 72.769132275 1999-06-01 71.275326960 1999-07-01 69.921303085 1999-08-01 69.933707593 1999-09-01 69.591793294 1999-10-01 69.437402029 1999-11-01 70.790449670 1999-12-01 72.095516266 2000-01-01 73.154758814 2000-02-01 74.328525859 2000-03-01 73.895775634 2000-04-01 75.678136478 2000-05-01 74.764250653 2000-06-01 74.637387411 2000-07-01 74.917461642 2000-08-01 75.339038911 2000-09-01 75.045857068 2000-10-01 75.404406057 2000-11-01 73.846817254 2000-12-01 72.183420543 2001-01-01 71.328272754 2001-02-01 71.893875597 2001-03-01 69.496457809 2001-04-01 68.219999440 2001-05-01 68.827459644 2001-06-01 69.380528746 2001-07-01 69.335127457 2001-08-01 70.241223323 2001-09-01 70.045912166 2001-10-01 71.238400819 2001-11-01 72.399177137 2001-12-01 72.792967249 2002-01-01 74.952247261 2002-02-01 72.450410419 2002-03-01 73.892747224 2002-04-01 73.543670388 2002-05-01 73.902472262 2002-06-01 74.109230195 2002-07-01 75.462915666 2002-08-01 75.043205541 2002-09-01 76.446229126 2002-10-01 77.494990321 2002-11-01 75.388169158 2002-12-01 75.796594385 2003-01-01 76.092287377 2003-02-01 73.675680310 2003-03-01 76.850046826 2003-04-01 75.547632553 2003-05-01 76.688009717 2003-06-01 77.399273161 2003-07-01 77.569062310 2003-08-01 78.194068649 2003-09-01 80.066284933 2003-10-01 77.725419196 2003-11-01 77.580052877 2003-12-01 78.576206626 2004-01-01 78.428180083 2004-02-01 75.598228210 2004-03-01 80.714304664 2004-04-01 76.056133510 2004-05-01 81.999670223 2004-06-01 82.245916117 2004-07-01 81.522530666 2004-08-01 80.418381888 2004-09-01 80.915090590 2004-10-01 79.692045747 2004-11-01 81.528481227 2004-12-01 83.029189767 2005-01-01 77.909800687 2005-02-01 79.115586383 2005-03-01 79.460916991 2005-04-01 79.000240088 2005-05-01 78.961165722 2005-06-01 78.291360334 2005-07-01 78.087467258 2005-08-01 78.892086943 2005-09-01 79.389472486 2005-10-01 79.659347400 2005-11-01 78.867848344 2005-12-01 79.702435654 2006-01-01 76.608959145 2006-02-01 79.132064421 2006-03-01 80.251007703 2006-04-01 81.319947279 2006-05-01 80.216547509 2006-06-01 79.820390653 2006-07-01 79.052167127 2006-08-01 78.455666976 2006-09-01 79.565491880 2006-10-01 79.767097603 2006-11-01 80.563048396 2006-12-01 80.890343773 2007-01-01 82.003368327 2007-02-01 81.834507762 2007-03-01 82.540991095 2007-04-01 82.493814509 2007-05-01 81.880973605 2007-06-01 81.922331473 2007-07-01 82.396262435 2007-08-01 81.909517024 2007-09-01 81.347806927 2007-10-01 81.798075580 2007-11-01 81.550010647 2007-12-01 81.265648386 2008-01-01 82.102456073 2008-02-01 82.314617564 2008-03-01 80.271262817 2008-04-01 80.526015182 2008-05-01 79.982830100 2008-06-01 80.352671757 2008-07-01 79.717422701 2008-08-01 81.677140843 2008-09-01 78.255497485 2008-10-01 76.715373763 2008-11-01 72.976483725 2008-12-01 67.281579410 2009-01-01 64.627903094 2009-02-01 65.067118619 2009-03-01 63.226732297 2009-04-01 61.622011673 2009-05-01 64.967441865 2009-06-01 68.616292541 2009-07-01 67.954772584 2009-08-01 71.018323683 2009-09-01 68.251102958 2009-10-01 68.374916994 2009-11-01 69.736899246 2009-12-01 69.245299471 2010-01-01 70.531786104 2010-02-01 70.752931885 2010-03-01 70.525968354 2010-04-01 75.206432001 2010-05-01 74.482683564 2010-06-01 73.358137308 2010-07-01 74.158035971 2010-08-01 74.314663040 2010-09-01 74.252239826 2010-10-01 75.219367071 2010-11-01 75.784146549 2010-12-01 76.915735758 2011-01-01 77.388451660 2011-02-01 77.494491277 2011-03-01 77.252930588 2011-04-01 76.869915127 2011-05-01 76.577660655 2011-06-01 77.361049246 2011-07-01 75.985234415 2011-08-01 76.943936586 2011-09-01 77.026371179 2011-10-01 77.050728884 2011-11-01 77.315255427 2011-12-01 76.707304063 2012-01-01 77.039694986 2012-02-01 76.677945555 2012-03-01 76.693264345 2012-04-01 77.915956831 2012-05-01 76.324405272 2012-06-01 75.182968711 2012-07-01 76.080617176 2012-08-01 76.252324450 2012-09-01 76.360021540 2012-10-01 76.481027496 2012-11-01 76.346257672 2012-12-01 76.388943983 2013-01-01 76.103552200 2013-02-01 75.902460904 2013-03-01 76.053653363 2013-04-01 75.263981026 2013-05-01 76.337399716 2013-06-01 76.489070265 2013-07-01 77.298959260 2013-08-01 78.235566560 2013-09-01 77.198033384 2013-10-01 77.630484148 2013-11-01 76.871866827 2013-12-01 77.528747149 2014-01-01 76.585677820 2014-02-01 75.959194240 2014-03-01 76.221670092 2014-04-01 75.319825103 2014-05-01 74.486803620 2014-06-01 74.767163849 2014-07-01 74.192702987 2014-08-01 74.325469170 2014-09-01 74.520470860 2014-10-01 74.507633295 2014-11-01 74.509111162 2014-12-01 74.999133716 2015-01-01 75.325191188 2015-02-01 76.074436398 2015-03-01 75.607696811 2015-04-01 76.976589113 2015-05-01 77.252453649 2015-06-01 76.883993526 2015-07-01 77.848645938 2015-08-01 76.347579294 2015-09-01 77.529935329 2015-10-01 76.789666165 2015-11-01 77.808590761 2015-12-01 77.633575105 2016-01-01 78.098891275 2016-02-01 77.783105600 2016-03-01 77.773866677 2016-04-01 77.126574374 2016-05-01 77.385028316 2016-06-01 77.342745503 2016-07-01 77.202221437 2016-08-01 75.957389824 2016-09-01 77.550528061 2016-10-01 77.157942880 2016-11-01 77.343651035 2016-12-01 77.712325990 2017-01-01 77.871536267 2017-02-01 78.464061738 2017-03-01 78.246784162 2017-04-01 78.495217453 2017-05-01 78.435542511 2017-06-01 78.355193632 2017-07-01 78.152291307 2017-08-01 78.551254830 2017-09-01 78.450309608 2017-10-01 79.000275402 2017-11-01 79.185825278 2017-12-01 78.665462160 2018-01-01 79.046603133 2018-02-01 79.398335903 2018-03-01 79.341892150 2018-04-01 77.395848680 2018-05-01 77.498824314 2018-06-01 77.669964900 2018-07-01 76.579051122 2018-08-01 77.580771451 2018-09-01 75.660024895 2018-10-01 74.708697751