Month	Percent
1968-01-01	66.3256484149856
1968-02-01	65.8943732911210
1968-03-01	68.3105679367362
1968-04-01	70.1119724375538
1968-05-01	71.0658442117343
1968-06-01	71.0171919770774
1968-07-01	70.6353749284488
1968-08-01	70.3216583273767
1968-09-01	69.8900157120411
1968-10-01	69.9186991869919
1968-11-01	69.1978914375267
1968-12-01	67.4074074074074
1969-01-01	65.9931701764371
1969-02-01	66.0079613306796
1969-03-01	68.2237682805623
1969-04-01	69.7176103306372
1969-05-01	70.6124184859654
1969-06-01	70.5565783883303
1969-07-01	70.1329937747595
1969-08-01	69.6481559983044
1969-09-01	69.8376852505293
1969-10-01	69.5290468133108
1969-11-01	68.6064534310272
1969-12-01	67.3187895847994
1970-01-01	66.1555774370516
1970-02-01	66.2217226359421
1970-03-01	68.4203142536476
1970-04-01	69.8401570386988
1970-05-01	70.3402884750035
1970-06-01	70.3511963061424
1970-07-01	70.2797202797203
1970-08-01	69.4972067039106
1970-09-01	69.6973922744387
1970-10-01	69.3786570075230
1970-11-01	68.4159242761693
1970-12-01	67.5073150341368
1971-01-01	66.5877437325905
1971-02-01	66.5182298914556
1971-03-01	68.9549749861034
1971-04-01	69.7251526929484
1971-05-01	70.0221852468109
1971-06-01	69.9487605594793
1971-07-01	69.7606861253285
1971-08-01	69.1818684355998
1971-09-01	68.7750310730562
1971-10-01	68.9388712570719
1971-11-01	68.4827586206896
1971-12-01	67.2461368653422
1972-01-01	66.5195808052951
1972-02-01	66.3676511178581
1972-03-01	67.7432712215321
1972-04-01	68.6853359084012
1972-05-01	69.3377392262151
1972-06-01	69.1429357545742
1972-07-01	69.2685589519651
1972-08-01	68.8879803761243
1972-09-01	68.8189619942787
1972-10-01	69.1032608695652
1972-11-01	68.1923129159310
1972-12-01	67.6354746706506
1973-01-01	67.1595225176343
1973-02-01	67.2224481496543
1973-03-01	68.1701205472030
1973-04-01	68.9048328144037
1973-05-01	69.2349283590160
1973-06-01	69.7771775827144
1973-07-01	69.6826468602296
1973-08-01	68.8199595414700
1973-09-01	69.0110482349771
1973-10-01	69.8814655172414
1973-11-01	68.9191008211065
1973-12-01	66.9492665859238
1974-01-01	66.0217654171705
1974-02-01	66.4207137107593
1974-03-01	67.7627164139042
1974-04-01	68.6469089446158
1974-05-01	69.0629183400268
1974-06-01	68.8820540251404
1974-07-01	68.2858289843436
1974-08-01	68.0780018699078
1974-09-01	68.1496325985304
1974-10-01	68.4252704688126
1974-11-01	67.6325277073040
1974-12-01	66.3285733351128
1975-01-01	65.1612043698375
1975-02-01	65.4066285105816
1975-03-01	66.6799840191770
1975-04-01	67.3892804894268
1975-05-01	68.4678704195433
1975-06-01	68.4873392549384
1975-07-01	68.3728948415330
1975-08-01	67.9909945702556
1975-09-01	67.9497354497354
1975-10-01	68.0190299986785
1975-11-01	67.4111272631162
1975-12-01	66.7591125198098
1976-01-01	65.6909282700422
1976-02-01	65.8443271767810
1976-03-01	67.0668953687822
1976-04-01	67.7075098814229
1976-05-01	68.0741910023678
1976-06-01	68.1734559789750
1976-07-01	68.3774180813265
1976-08-01	68.1245074862096
1976-09-01	68.1132817621607
1976-10-01	67.9475409836066
1976-11-01	67.4229508196721
1976-12-01	66.7496723460026
1977-01-01	65.7856862488552
1977-02-01	65.8507853403141
1977-03-01	67.0112535985344
1977-04-01	68.2757718472004
1977-05-01	68.7597911227154
1977-06-01	68.8944002088500
1977-07-01	68.8862775819298
1977-08-01	68.2742440041710
1977-09-01	68.3676126008852
1977-10-01	68.1197137280416
1977-11-01	67.9500520291363
1977-12-01	67.4645505398725
1978-01-01	66.1462399167317
1978-02-01	66.4672994409050
1978-03-01	67.5334806917176
1978-04-01	68.6063125081179
1978-05-01	69.6435515230071
1978-06-01	69.8108318217155
1978-07-01	69.0642820114049
1978-08-01	68.5817805383023
1978-09-01	68.6368339368857
1978-10-01	68.7128456965624
1978-11-01	68.2939429161824
1978-12-01	67.6314769350045
1979-01-01	66.8688693856479
1979-02-01	66.6623644811564
1979-03-01	67.4874307077478
1979-04-01	68.8192833204434
1979-05-01	69.6368787020345
1979-06-01	69.7414125820147
1979-07-01	69.6010296010296
1979-08-01	69.1783464060692
1979-09-01	68.7524090967493
1979-10-01	69.1616382077288
1979-11-01	68.5424945519805
1979-12-01	67.6534666154043
1980-01-01	66.6880122950820
1980-02-01	66.5727098014094
1980-03-01	67.5713737037511
1980-04-01	68.8394683026585
1980-05-01	69.3132499361756
1980-06-01	69.7437205151090
1980-07-01	69.6223526409798
1980-08-01	69.1935278379411
1980-09-01	69.1045535487154
1980-10-01	68.9659552845528
1980-11-01	68.5119349923819
1980-12-01	67.8566891119299
1981-01-01	66.9458190584951
1981-02-01	66.8485848457926
1981-03-01	67.9396092362345
1981-04-01	69.3351941131692
1981-05-01	69.6285967803270
1981-06-01	69.7376758332277
1981-07-01	69.4891621244771
1981-08-01	69.1100139258134
1981-09-01	68.9018218623482
1981-10-01	68.9467695030977
1981-11-01	68.8543247344461
1981-12-01	68.2445260093659
1982-01-01	67.2561899949469
1982-02-01	67.3356052000505
1982-03-01	68.5173501577287
1982-04-01	69.5789208270298
1982-05-01	70.0062932662052
1982-06-01	69.7537069615481
1982-07-01	69.4154619736015
1982-08-01	69.0870328567846
1982-09-01	69.1141460969803
1982-10-01	69.3665498247371
1982-11-01	69.0786179268903
1982-12-01	68.9080891560230
1983-01-01	68.2454386403399
1983-02-01	68.0983893120240
1983-03-01	69.0202449387653
1983-04-01	70.1535388840344
1983-05-01	70.7034173110501
1983-06-01	70.5926294820717
1983-07-01	70.2850740694635
1983-08-01	70.0583923468754
1983-09-01	70.0421940928270
1983-10-01	69.9503722084367
1983-11-01	69.4854308741476
1983-12-01	68.5965782296058
1984-01-01	67.7319459928156
1984-02-01	67.7814938684504
1984-03-01	68.7012504642813
1984-04-01	69.8924731182796
1984-05-01	70.2395653247716
1984-06-01	70.5069692858024
1984-07-01	70.1356350184957
1984-08-01	69.8547513540128
1984-09-01	70.1597051597052
1984-10-01	70.1388035867830
1984-11-01	69.4942302970783
1984-12-01	68.6440677966102
1985-01-01	68.0117748068196
1985-02-01	67.8764100049044
1985-03-01	68.6166298749080
1985-04-01	69.8651960784314
1985-05-01	70.1492537313433
1985-06-01	70.0061162079511
1985-07-01	69.8373884337939
1985-08-01	69.5051924251680
1985-09-01	69.7660248598586
1985-10-01	69.6541646371164
1985-11-01	69.1362530413625
1985-12-01	68.0988315481986
1986-01-01	67.9392097264438
1986-02-01	67.7717061323619
1986-03-01	68.6726522688668
1986-04-01	69.8568655992237
1986-05-01	69.9137616907567
1986-06-01	70.0679446736229
1986-07-01	70.1077090645044
1986-08-01	69.7862576983456
1986-09-01	69.5793660359166
1986-10-01	69.4892796916406
1986-11-01	69.0157812311770
1986-12-01	68.2294805351332
1987-01-01	67.5613866153105
1987-02-01	67.5373134328358
1987-03-01	68.5171833693824
1987-04-01	69.7370001200913
1987-05-01	70.1177035791496
1987-06-01	70.0468018720749
1987-07-01	69.7496106385528
1987-08-01	69.7285013754336
1987-09-01	69.5875672444710
1987-10-01	69.3841012174743
1987-11-01	69.1858385981643
1987-12-01	68.6665076335878
1988-01-01	67.9285714285714
1988-02-01	67.7065968087640
1988-03-01	68.6636493568366
1988-04-01	69.8846748305790
1988-05-01	70.2705910277712
1988-06-01	70.1733554975065
1988-07-01	70.0723863771212
1988-08-01	69.7203128703484
1988-09-01	69.4772942289499
1988-10-01	69.2889203874321
1988-11-01	69.1164327002477
1988-12-01	68.8371543370362
1989-01-01	67.9815755285225
1989-02-01	68.2016767032708
1989-03-01	69.1091445427729
1989-04-01	70.2807928268051
1989-05-01	70.7253886010363
1989-06-01	70.8151982119751
1989-07-01	70.5840874368316
1989-08-01	70.0469483568075
1989-09-01	69.8289997657531
1989-10-01	69.9145098957724
1989-11-01	69.8957479208153
1989-12-01	69.4551845342706
1990-01-01	68.6614357653121
1990-02-01	68.9279437609842
1990-03-01	69.7903244699543
1990-04-01	70.6874341257759
1990-05-01	71.2867818776273
1990-06-01	71.1583372255955
1990-07-01	70.9696261682243
1990-08-01	70.3885194259713
1990-09-01	70.7018973344197
1990-10-01	70.8270326858206
1990-11-01	70.5402887750349
1990-12-01	70.1095826532991
1991-01-01	69.4412107101281
1991-02-01	69.5363466915191
1991-03-01	70.4246655031995
1991-04-01	71.3123329071254
1991-05-01	71.7621094203740
1991-06-01	71.8829811934061
1991-07-01	71.4915844457342
1991-08-01	71.3027352804822
1991-09-01	71.3408985641501
1991-10-01	71.2565141864505
1991-11-01	71.3011238558684
1991-12-01	71.0340025530927
1992-01-01	69.9907235621521
1992-02-01	70.2849860982391
1992-03-01	70.8260919939752
1992-04-01	71.6705336426914
1992-05-01	72.0537161379949
1992-06-01	71.9158284194704
1992-07-01	71.6119333950046
1992-08-01	71.4648798521257
1992-09-01	71.4252740911714
1992-10-01	71.8093699515347
1992-11-01	71.7614488406967
1992-12-01	71.3609057301294
1993-01-01	70.1557991921524
1993-02-01	69.9515347334410
1993-03-01	70.6472827968155
1993-04-01	71.7336103416436
1993-05-01	72.2106961733518
1993-06-01	72.1281253600645
1993-07-01	71.9340710004610
1993-08-01	71.6555376467879
1993-09-01	71.6143136578069
1993-10-01	71.8807550644567
1993-11-01	71.7326277036355
1993-12-01	71.4088397790055
1994-01-01	70.3635526921307
1994-02-01	70.1370494068870
1994-03-01	70.9250086395576
1994-04-01	72.0890016140189
1994-05-01	72.5189960856551
1994-06-01	72.3014959723820
1994-07-01	71.9976971790443
1994-08-01	71.7523875273271
1994-09-01	71.6519140131050
1994-10-01	71.6864007357168
1994-11-01	71.3842262589101
1994-12-01	70.9848136217211
1995-01-01	70.3414185538568
1995-02-01	70.2509785862307
1995-03-01	71.1029242459130
1995-04-01	71.9815668202765
1995-05-01	72.1960197860347
1995-06-01	72.3039779259600
1995-07-01	72.1985488886330
1995-08-01	71.8429837688500
1995-09-01	72.1187025534852
1995-10-01	71.8753593193055
1995-11-01	71.5599494194735
1995-12-01	71.2822283609576
1996-01-01	70.7547169811321
1996-02-01	70.5624711848778
1996-03-01	71.4714022140221
1996-04-01	72.3728227015804
1996-05-01	72.6183619398687
1996-06-01	73.0109383995394
1996-07-01	72.9620661824052
1996-08-01	72.4642692485016
1996-09-01	72.5817595578074
1996-10-01	72.4352331606218
1996-11-01	71.9631548647093
1996-12-01	71.7333640871872
1997-01-01	71.5139671226578
1997-02-01	71.6062176165803
1997-03-01	72.1307701162657
1997-04-01	72.8833083746112
1997-05-01	73.3317993557294
1997-06-01	73.5280588776449
1997-07-01	73.3072316904652
1997-08-01	72.9125878152712
1997-09-01	73.0074755606670
1997-10-01	73.0043708304578
1997-11-01	72.2963644730787
1997-12-01	72.1710071445033
1998-01-01	71.9815668202765
1998-02-01	71.5717907351924
1998-03-01	72.2382214030642
1998-04-01	72.9075397740374
1998-05-01	73.4385803180456
1998-06-01	73.4132012440963
1998-07-01	73.0498905403848
1998-08-01	73.0937571988021
1998-09-01	72.9188255613126
1998-10-01	72.8204537602211
1998-11-01	72.5043177892919
1998-12-01	72.1042916474389
1999-01-01	71.6854968872492
1999-02-01	71.5208862220171
1999-03-01	72.2664819304930
1999-04-01	72.9867128827268
1999-05-01	73.2909930715935
1999-06-01	73.1000231000231
1999-07-01	72.7734781101998
1999-08-01	72.9570637119114
1999-09-01	72.9517655204246
1999-10-01	72.7062896710906
1999-11-01	72.4754760530871
1999-12-01	72.0669745958430
2000-01-01	71.5440582053355
2000-02-01	71.4071164510166
2000-03-01	71.9671562391581
2000-04-01	72.9198009489642
2000-05-01	73.2562174667438
2000-06-01	73.0626879481841
2000-07-01	72.8262128053722
2000-08-01	72.7598981245659
2000-09-01	72.8156463372295
2000-10-01	72.9807914834529
2000-11-01	72.8997917148808
2000-12-01	72.3411642171045
2001-01-01	72.0625724217845
2001-02-01	72.1189591078067
2001-03-01	72.3537604456824
2001-04-01	72.9353002671623
2001-05-01	73.3147696948602
2001-06-01	73.0996866658930
2001-07-01	72.9500580720093
2001-08-01	72.8423742594959
2001-09-01	72.5415070242656
2001-10-01	72.6998491704374
2001-11-01	72.8284819668329
2001-12-01	72.1151613652194
2002-01-01	71.5648632926120
2002-02-01	71.6017719748193
2002-03-01	72.1950081642174
2002-04-01	72.5499357551688
2002-05-01	72.5734951003266
2002-06-01	72.7611940298507
2002-07-01	72.7145359019264
2002-08-01	72.7601915664058
2002-09-01	72.5437572928821
2002-10-01	72.7506126735908
2002-11-01	72.5189947399182
2002-12-01	72.0290364125981
2003-01-01	71.5825231345906
2003-02-01	71.3950486917752
2003-03-01	72.2189661235494
2003-04-01	72.6088487266753
2003-05-01	72.8551336146273
2003-06-01	73.0827771923662
2003-07-01	72.7581760637674
2003-08-01	72.5759174580842
2003-09-01	72.5802671666276
2003-10-01	72.6825266611977
2003-11-01	72.5674091441970
2003-12-01	72.2626879699248
2004-01-01	71.6181305777360
2004-02-01	71.5445241736266
2004-03-01	71.9572368421053
2004-04-01	72.5522423104015
2004-05-01	72.7123223305533
2004-06-01	72.6630562750177
2004-07-01	72.7979274611399
2004-08-01	72.9659719769222
2004-09-01	72.7336943724982
2004-10-01	72.7861516721620
2004-11-01	72.2732626619552
2004-12-01	71.9660337303927
2005-01-01	71.8281600377670
2005-02-01	71.6243354991140
2005-03-01	72.0941232115407
2005-04-01	72.8338068181818
2005-05-01	73.3664185277088
2005-06-01	73.1392734587623
2005-07-01	73.2149200710480
2005-08-01	73.0933207010895
2005-09-01	73.3104509409398
2005-10-01	73.3214920071048
2005-11-01	72.6733847065797
2005-12-01	72.3237597911227
2006-01-01	72.2704051324700
2006-02-01	72.2698072805139
2006-03-01	72.6235741444867
2006-04-01	73.3174508636093
2006-05-01	73.8933841028082
2006-06-01	73.7029985721085
2006-07-01	73.3674928503336
2006-08-01	73.4852099236641
2006-09-01	73.5543102420412
2006-10-01	73.5862562634216
2006-11-01	73.2696897374702
2006-12-01	72.8294666347764
2007-01-01	72.5125869096140
2007-02-01	72.7861771058315
2007-03-01	73.3373349339736
2007-04-01	74.1803770865858
2007-05-01	74.5616142205141
2007-06-01	74.3124774828870
2007-07-01	73.8132436005288
2007-08-01	73.8304269392664
2007-09-01	73.8779930212971
2007-10-01	73.9711191335740
2007-11-01	74.0245664739884
2007-12-01	73.6296831707023
2008-01-01	73.1098516821416
2008-02-01	73.0225818137906
2008-03-01	73.4106840705826
2008-04-01	74.3074876013064
2008-05-01	74.6916565900846
2008-06-01	74.4588221066634
2008-07-01	73.8230666828029
2008-08-01	74.1579840077538
2008-09-01	74.2244304411052
2008-10-01	73.9662907724021
2008-11-01	74.1778910326417
2008-12-01	73.8644644158368
2009-01-01	73.5587448309414
2009-02-01	73.4470158343484
2009-03-01	73.5251097025841
2009-04-01	74.3080112181441
2009-05-01	74.5669675530617
2009-06-01	74.3470832316329
2009-07-01	74.1210937500000
2009-08-01	74.5174688492548
2009-09-01	74.6456500488758
2009-10-01	74.2329788534409
2009-11-01	74.1044137425113
2009-12-01	73.7486231795374
2010-01-01	73.5701163502756
2010-02-01	73.5009196811772
2010-03-01	73.8959764474976
2010-04-01	74.4014732965009
2010-05-01	74.6103816419192
2010-06-01	74.3866535819431
2010-07-01	74.1899852724595
2010-08-01	74.4383057090239
2010-09-01	74.8250030701216
2010-10-01	74.5273753989688
2010-11-01	74.2509823182711
2010-12-01	73.8644733611589
2011-01-01	73.7016574585635
2011-02-01	73.8147875214935
2011-03-01	74.4096445438727
2011-04-01	75.0870646766169
2011-05-01	75.2641392169049
2011-06-01	75.2610641471904
2011-07-01	74.6767777225261
2011-08-01	74.5166521142572
2011-09-01	73.9891518737672
2011-10-01	74.1494082840237
2011-11-01	74.1609081934847
2011-12-01	73.7407407407408
2012-01-01	73.2815006787610
2012-02-01	73.3959698355792
2012-03-01	73.4315060017324
2012-04-01	74.2535001858506
2012-05-01	74.3360635393398
2012-06-01	74.4723118947107
2012-07-01	74.2015658009196
2012-08-01	74.0477968633308
2012-09-01	74.1465237976576
2012-10-01	74.3669701883498
2012-11-01	74.2632367632368
2012-12-01	73.6467058382298
2013-01-01	74.0285785911256
2013-02-01	74.1931432877056
2013-03-01	74.3054682589566
2013-04-01	75.1762336354481
2013-05-01	75.2456538170824
2013-06-01	75.0913903945544
2013-07-01	74.8296744890234
2013-08-01	75.0821329289866
2013-09-01	75.2401415571284
2013-10-01	75.4206198608476
2013-11-01	75.5192502532928
2013-12-01	75.0000000000000
2014-01-01	74.6792021344175
2014-02-01	74.8281130634072
2014-03-01	75.1051625239006
2014-04-01	75.5776841567726
2014-05-01	76.0025542784164
2014-06-01	76.0194298862329
2014-07-01	75.6684149929641
2014-08-01	75.6310057655349
2014-09-01	76.0928086142802
2014-10-01	76.0462130937099
2014-11-01	75.7805473467814
2014-12-01	75.7267815796244
2015-01-01	75.3542901314094
2015-02-01	75.5065169699316
2015-03-01	75.5521115846571
2015-04-01	75.8500323206206
2015-05-01	76.1122607346094
2015-06-01	76.3800904977376
2015-07-01	76.1201761201761
2015-08-01	76.1571373006612
2015-09-01	76.7664981200570
2015-10-01	76.6247243481645
2015-11-01	76.2430221991432
2015-12-01	76.3390535621425
2016-01-01	76.4315460697554
2016-02-01	76.1836441893831
2016-03-01	76.2426614481409
2016-04-01	76.8487065586621
2016-05-01	76.8547544409614
2016-06-01	77.2115510257416
2016-07-01	77.0950451039352
2016-08-01	77.3560209424084
2016-09-01	77.5376555337263
2016-10-01	77.4024613773239
2016-11-01	77.0964360587002
2016-12-01	77.3055227600682
2017-01-01	77.0915289798059
2017-02-01	76.6412815126050
2017-03-01	76.6259361450532
2017-04-01	77.3815789473684
2017-05-01	77.8771537550967
2017-06-01	78.0205317188734
2017-07-01	77.8786682458218
2017-08-01	77.9314888010540
2017-09-01	78.1772685368102
2017-10-01	78.0442804428044
2017-11-01	77.9169413315755
2017-12-01	77.9376815421178
2018-01-01	77.9510905485790
2018-02-01	78.0629796242392
2018-03-01	78.4692796610170
2018-04-01	78.9536423841060
2018-05-01	79.0143084260731
2018-06-01	79.0734612839179
2018-07-01	79.0931989924433
2018-08-01	79.1876825059729
2018-09-01	79.2943361188486