Month	Percent
1978-02-01	3.75238684215114
1978-03-01	3.40990631457361
1978-04-01	3.35709461264715
1978-05-01	3.38873894412022
1978-06-01	3.57519700145222
1978-07-01	3.50404063503131
1978-08-01	3.48366122689715
1978-09-01	3.48447004053244
1978-10-01	3.32738505498885
1978-11-01	3.42309542287474
1978-12-01	3.35134821660580
1979-01-01	3.44081766448130
1979-02-01	3.60581165942219
1979-03-01	3.33239625067464
1979-04-01	3.24810571008060
1979-05-01	3.25664610841096
1979-06-01	3.25133092947183
1979-07-01	3.07113086052712
1979-08-01	2.90896593090540
1979-09-01	2.94014055183543
1979-10-01	2.95356437848873
1979-11-01	2.77850219102376
1979-12-01	2.86091197607897
1980-01-01	3.38076776134919
1980-02-01	3.32284450824740
1980-03-01	3.13425706954771
1980-04-01	3.01916659012521
1980-05-01	3.36630847387782
1980-06-01	3.20384631970587
1980-07-01	3.13850713810125
1980-08-01	3.14072183066127
1980-09-01	3.10742954872762
1980-10-01	2.85719486523962
1980-11-01	2.83122542133295
1980-12-01	2.82050078755621
1981-01-01	3.11097097481305
1981-02-01	3.07438797783929
1981-03-01	3.07875120021253
1981-04-01	2.91380517444304
1981-05-01	3.08777219545022
1981-06-01	3.00364826409961
1981-07-01	3.23503043191755
1981-08-01	3.26044470955938
1981-09-01	3.32794330192456
1981-10-01	3.16283185776812
1981-11-01	3.22532346424946
1981-12-01	3.09894649165818
1982-01-01	3.42684039960089
1982-02-01	3.64590910653711
1982-03-01	3.60808265518355
1982-04-01	3.49057065044549
1982-05-01	3.54116947283108
1982-06-01	3.68677340126100
1982-07-01	3.98572527573039
1982-08-01	4.22807494569282
1982-09-01	4.66840456263122
1982-10-01	4.95943088377752
1982-11-01	5.49534251708002
1982-12-01	5.89681703284248
1983-01-01	6.46861597890581
1983-02-01	6.77864514485089
1983-03-01	6.92256892045661
1983-04-01	7.17269750381359
1983-05-01	7.11755736244904
1983-06-01	7.07283789580753
1983-07-01	7.04282554521772
1983-08-01	7.15042900832467
1983-09-01	7.05521492241836
1983-10-01	6.73278412731725
1983-11-01	6.26063736719804
1983-12-01	6.13772338106822
1984-01-01	7.01948230369964
1984-02-01	6.76546817894809
1984-03-01	6.34456682157651
1984-04-01	6.12777299948202
1984-05-01	6.15565423814690
1984-06-01	6.07172003526226
1984-07-01	5.83211090463396
1984-08-01	6.18274402304251
1984-09-01	6.19365945240300
1984-10-01	5.65822306748965
1984-11-01	5.45444510024625
1984-12-01	5.58642002331189
1985-01-01	6.15474540179798
1985-02-01	5.98599641418510
1985-03-01	6.06919205262688
1985-04-01	5.98564395234198
1985-05-01	6.10542327664009
1985-06-01	6.21112077270517
1985-07-01	5.70725680561235
1985-08-01	5.78247284883388
1985-09-01	5.64065498293680
1985-10-01	5.13336992142921
1985-11-01	5.14406048362453
1985-12-01	5.01180563011486
1986-01-01	5.35520792607041
1986-02-01	5.54253501183113
1986-03-01	5.38161149304231
1986-04-01	5.27668015859833
1986-05-01	5.50140128459482
1986-06-01	5.22727255615291
1986-07-01	5.44125041370090
1986-08-01	5.66847673571303
1986-09-01	5.71614978139807
1986-10-01	5.42695388649564
1986-11-01	5.73386723001507
1986-12-01	5.66149318769737
1987-01-01	6.23485304969664
1987-02-01	6.01675842288938
1987-03-01	6.06199071678538
1987-04-01	5.80756403896129
1987-05-01	5.95713066478327
1987-06-01	5.83494938020057
1987-07-01	5.71946764061754
1987-08-01	5.51551203492708
1987-09-01	5.53619100046891
1987-10-01	5.52345519946701
1987-11-01	5.40675673419050
1987-12-01	5.08365806946448
1988-01-01	5.33211083444741
1988-02-01	5.31968509045025
1988-03-01	5.28046427378351
1988-04-01	5.28073590284799
1988-05-01	5.02855819322833
1988-06-01	5.01581498011446
1988-07-01	4.83676741924637
1988-08-01	4.89264120938797
1988-09-01	4.90988965945771
1988-10-01	4.65573682568751
1988-11-01	4.28104286452547
1988-12-01	4.57137398903155
1989-01-01	4.97407630028238
1989-02-01	5.14057850004392
1989-03-01	4.64402472610562
1989-04-01	4.41918421234904
1989-05-01	4.49681842198519
1989-06-01	4.31079515608606
1989-07-01	4.34628667558433
1989-08-01	4.15652292388527
1989-09-01	4.35972893813715
1989-10-01	3.78706018616435
1989-11-01	3.78718180314781
1989-12-01	3.92546285852019
1990-01-01	4.39424483510080
1990-02-01	4.71856301160084
1990-03-01	4.43754602676596
1990-04-01	4.43211771984241
1990-05-01	4.62985445459989
1990-06-01	4.60305720467192
1990-07-01	4.97800438765265
1990-08-01	5.02372506537841
1990-09-01	5.58842656016926
1990-10-01	5.52150292794798
1990-11-01	5.87246803751062
1990-12-01	5.74476761606708
1991-01-01	6.85238079501154
1991-02-01	7.04213907998548
1991-03-01	7.29003788055985
1991-04-01	7.59719384669518
1991-05-01	7.45898341459315
1991-06-01	7.36140273198931
1991-07-01	7.83631220514280
1991-08-01	8.08908038243183
1991-09-01	8.27596311110711
1991-10-01	7.97177881987312
1991-11-01	8.09623697453586
1991-12-01	8.19301566042333
1992-01-01	8.80318710670427
1992-02-01	8.99061675531142
1992-03-01	8.68315239732604
1992-04-01	8.54401846962470
1992-05-01	8.84441062496518
1992-06-01	8.80773731877239
1992-07-01	9.13158716992284
1992-08-01	8.94778243941663
1992-09-01	8.93643310282200
1992-10-01	8.82631132536098
1992-11-01	9.29821058460555
1992-12-01	9.33768745810554
1993-01-01	10.03763615713500
1993-02-01	10.17973852474660
1993-03-01	9.48517627198419
1993-04-01	9.68204037047861
1993-05-01	9.66358162458449
1993-06-01	9.56989010597812
1993-07-01	9.28599650491373
1993-08-01	9.38766622542605
1993-09-01	9.28402093506983
1993-10-01	9.12894522521243
1993-11-01	9.17763587059045
1993-12-01	8.99830875033446
1994-01-01	9.78650177977912
1994-02-01	9.38826079953424
1994-03-01	8.98953548729635
1994-04-01	8.36260038214416
1994-05-01	8.06188844696096
1994-06-01	8.11091302123116
1994-07-01	7.67442377208373
1994-08-01	7.80560799148398
1994-09-01	7.86374241644028
1994-10-01	7.35848252264294
1994-11-01	7.38096293413959
1994-12-01	7.08531702459870
1995-01-01	7.92999992016884
1995-02-01	7.75161002180487
1995-03-01	7.27627943477253
1995-04-01	7.08436715328318
1995-05-01	7.18854693345490
1995-06-01	6.86922424380328
1995-07-01	6.82346425411231
1995-08-01	6.98933813738455
1995-09-01	7.10805894315995
1995-10-01	6.99750588763388
1995-11-01	6.62461540259174
1995-12-01	6.55571596384431
1996-01-01	7.33498251525868
1996-02-01	7.30638673652587
1996-03-01	7.11146927690501
1996-04-01	7.00332524015785
1996-05-01	6.72379128972452
1996-06-01	6.62393438103288
1996-07-01	6.57187769663602
1996-08-01	7.20674159868996
1996-09-01	7.09848385131162
1996-10-01	6.66525124205012
1996-11-01	6.58827491896648
1996-12-01	6.46102601127769
1997-01-01	7.18084594813362
1997-02-01	7.31779878666243
1997-03-01	7.03120945018404
1997-04-01	6.86363014683484
1997-05-01	6.87491209954910
1997-06-01	6.55964346654234
1997-07-01	6.68596634131570
1997-08-01	6.71606796650137
1997-09-01	6.57093223906553
1997-10-01	6.17620036387108
1997-11-01	6.27552249839862
1997-12-01	6.11874741172968
1998-01-01	6.68808208059771
1998-02-01	6.79205854492164
1998-03-01	6.58667778763304
1998-04-01	6.09613598045047
1998-05-01	6.43162473378682
1998-06-01	6.38048186309720
1998-07-01	6.34744572300507
1998-08-01	6.50168626443333
1998-09-01	6.32336541627649
1998-10-01	5.91525783855615
1998-11-01	6.13232572293214
1998-12-01	5.67486126750282
1999-01-01	6.22743503366787
1999-02-01	6.32546932001641
1999-03-01	5.69028437151977
1999-04-01	5.67151542571647
1999-05-01	5.79018779206905
1999-06-01	5.30662517552799
1999-07-01	5.17787146024845
1999-08-01	5.47344971838331
1999-09-01	5.80691666291518
1999-10-01	5.42995557682764
1999-11-01	5.01146176071195
1999-12-01	5.14092166217389
2000-01-01	5.77300689054700
2000-02-01	5.48866421661014
2000-03-01	5.31374519109281
2000-04-01	5.00704259799943
2000-05-01	5.10061038063857
2000-06-01	4.95307815464510
2000-07-01	4.72453457868392
2000-08-01	4.93024957389443
2000-09-01	5.17064026943184
2000-10-01	4.83908405688362
2000-11-01	4.80522059850884
2000-12-01	4.80189322407686
2001-01-01	5.33287956433197
2001-02-01	5.61031800702402
2001-03-01	5.20689661958656
2001-04-01	5.39677678074405
2001-05-01	5.29813154461315
2001-06-01	5.36712127602590
2001-07-01	5.17080975137772
2001-08-01	5.50226817200529
2001-09-01	5.53078187539915
2001-10-01	5.29751618706642
2001-11-01	5.26559998859639
2001-12-01	4.98482744059754
2002-01-01	5.81970155127697
2002-02-01	5.65748310785928
2002-03-01	5.40803133452611
2002-04-01	5.19700253475233
2002-05-01	5.11272348583391
2002-06-01	4.96825607461008
2002-07-01	4.52877488684315
2002-08-01	4.75420864060218
2002-09-01	4.89180273704848
2002-10-01	4.46048490318307
2002-11-01	4.43562545137734
2002-12-01	4.44792451251408
2003-01-01	5.04469112152334
2003-02-01	4.98677914600862
2003-03-01	4.57066960631331
2003-04-01	4.64281131033485
2003-05-01	4.61160680526758
2003-06-01	4.66673032741499
2003-07-01	4.32806122525231
2003-08-01	4.22469968274018
2003-09-01	4.28817048428364
2003-10-01	4.21559354928110
2003-11-01	3.98900035832409
2003-12-01	3.75553772196219
2004-01-01	4.24502206417505
2004-02-01	4.43499634013070
2004-03-01	3.83891403687600
2004-04-01	4.08033466582937
2004-05-01	3.95324564577068
2004-06-01	3.93790311473360
2004-07-01	3.78991999620772
2004-08-01	3.78413137215048
2004-09-01	4.03113490530828
2004-10-01	3.49848439769975
2004-11-01	3.53728995736246
2004-12-01	3.32875396407958
2005-01-01	3.88524227275206
2005-02-01	3.84162701506658
2005-03-01	3.69291732228865
2005-04-01	3.67626285406299
2005-05-01	3.61660935683391
2005-06-01	3.48668988505500
2005-07-01	3.18663684305915
2005-08-01	3.59143381589312
2005-09-01	3.65238888136883
2005-10-01	3.39947384662329
2005-11-01	3.50124053269698
2005-12-01	3.43137381103348
2006-01-01	4.04837663052797
2006-02-01	4.01506059602370
2006-03-01	3.43869008111454
2006-04-01	3.42897895049304
2006-05-01	3.45534596632385
2006-06-01	3.47411341307326
2006-07-01	3.17052452926786
2006-08-01	3.36819426827764
2006-09-01	3.31089323454276
2006-10-01	3.15932372698113
2006-11-01	3.05735076759132
2006-12-01	2.82740257391262
2007-01-01	3.42034112894655
2007-02-01	3.33516194050649
2007-03-01	3.02244374059392
2007-04-01	2.94584668412327
2007-05-01	2.83204940805831
2007-06-01	2.86376638061715
2007-07-01	2.57419735435799
2007-08-01	2.58969401023079
2007-09-01	2.75742512495458
2007-10-01	2.64056489110038
2007-11-01	2.75434078545772
2007-12-01	2.72828969360796
2008-01-01	2.80749814940786
2008-02-01	2.80366694110386
2008-03-01	2.87079601759552
2008-04-01	3.04431533329100
2008-05-01	2.94551910285751
2008-06-01	2.79072686626868
2008-07-01	2.70754495008408
2008-08-01	2.72617662378880
2008-09-01	2.94416437122701
2008-10-01	2.84622068913860
2008-11-01	2.77093033407725
2008-12-01	3.04672462463036
2009-01-01	4.03200171540791
2009-02-01	4.11341625187554
2009-03-01	4.37564045986156
2009-04-01	4.23338755563427
2009-05-01	4.65801309999902
2009-06-01	4.69152295539626
2009-07-01	4.29844608048962
2009-08-01	4.24463304402278
2009-09-01	4.26273955815047
2009-10-01	4.24575774042106
2009-11-01	3.99958409215876
2009-12-01	3.91862057239270
2010-01-01	4.09428625838612
2010-02-01	4.27426146848006
2010-03-01	4.16596259133852
2010-04-01	3.89489858844843
2010-05-01	3.85755098949784
2010-06-01	3.57752253635258
2010-07-01	3.60003639729734
2010-08-01	3.27934372029771
2010-09-01	3.55290176602820
2010-10-01	3.54308355833633
2010-11-01	3.20338052558752
2010-12-01	2.90387455050887
2011-01-01	3.42738343785482
2011-02-01	3.52855098339515
2011-03-01	3.31674708736901
2011-04-01	3.37193019757136
2011-05-01	3.46253839690657
2011-06-01	3.25159133156415
2011-07-01	3.39210676568572
2011-08-01	3.66545754163252
2011-09-01	3.74382428215503
2011-10-01	3.76042462369341
2011-11-01	3.67686946265058
2011-12-01	3.22316799765882
2012-01-01	3.83947198026314
2012-02-01	3.93721947271144
2012-03-01	3.72810430306474
2012-04-01	3.48528761705164
2012-05-01	3.45220598637218
2012-06-01	3.45812261317147
2012-07-01	3.56173173116089
2012-08-01	3.72322277464676
2012-09-01	4.21779167788088
2012-10-01	3.82140615379710
2012-11-01	3.56480417972281
2012-12-01	3.54047334926708
2013-01-01	4.21711149697684
2013-02-01	4.32775359200199
2013-03-01	4.25415235098245
2013-04-01	4.10929272986331
2013-05-01	4.16336221695912
2013-06-01	4.33825299854060
2013-07-01	4.19600809513048
2013-08-01	4.31857023619351
2013-09-01	4.25304467666645
2013-10-01	4.49477868128165
2013-11-01	4.44586058187433
2013-12-01	4.35242908300722
2014-01-01	4.86496461605354
2014-02-01	4.74738148189321
2014-03-01	4.34598214506664
2014-04-01	4.26637639512243
2014-05-01	4.20681778731270
2014-06-01	4.26781615384833
2014-07-01	4.46845222732357
2014-08-01	4.46854693633214
2014-09-01	4.52530367230778
2014-10-01	4.51028719066778
2014-11-01	4.43321597425070
2014-12-01	4.23204556368676
2015-01-01	4.96001110676222
2015-02-01	4.83774387620796
2015-03-01	4.51086375734440
2015-04-01	4.38837974788183
2015-05-01	4.17957803616650
2015-06-01	4.39306362963102
2015-07-01	4.44561377539875
2015-08-01	4.84501101421733
2015-09-01	4.72832010285696
2015-10-01	4.36496558247829
2015-11-01	4.08006466428694
2015-12-01	3.85188926012100
2016-01-01	4.70954525236634
2016-02-01	4.39047161083921
2016-03-01	4.31030515187971
2016-04-01	4.09405783875971
2016-05-01	4.06324309061494
2016-06-01	3.80075718572034
2016-07-01	3.98321726681675
2016-08-01	4.14682402958804
2016-09-01	4.08977304811347
2016-10-01	3.88702712642347
2016-11-01	3.85288422292056
2016-12-01	3.88082532711719
2017-01-01	4.30368905090656
2017-02-01	4.39490847406360
2017-03-01	4.19957541961188
2017-04-01	3.83231194927778
2017-05-01	3.91421218090741
2017-06-01	3.86834698026441
2017-07-01	4.05130389240463
2017-08-01	4.11561119995082
2017-09-01	3.87645182471026
2017-10-01	3.75439906337994
2017-11-01	3.69413581977937
2017-12-01	3.90826154558227
2018-01-01	4.24416372114112
2018-02-01	4.19166274957421
2018-03-01	4.05831974118467
2018-04-01	3.94734717977867
2018-05-01	3.94293587294975
2018-06-01	3.95009821625105
2018-07-01	4.04458153386522
2018-08-01	3.83468090419535
2018-09-01	3.48697585402220