Month	Percent
1968-01-01	50.2115655853314
1968-02-01	49.6901408450704
1968-03-01	52.8285955530538
1968-04-01	55.5368184373243
1968-05-01	57.0786516853933
1968-06-01	56.7021873247336
1968-07-01	55.9540487531521
1968-08-01	55.7390817469205
1968-09-01	55.0894854586130
1968-10-01	54.9134561697376
1968-11-01	54.1143654114365
1968-12-01	51.5481171548117
1969-01-01	49.5962127541075
1969-02-01	49.8747564709157
1969-03-01	52.6959421901056
1969-04-01	54.7500000000000
1969-05-01	56.1910049972238
1969-06-01	55.9345535219079
1969-07-01	55.1274944567628
1969-08-01	54.6762589928058
1969-09-01	55.1991150442478
1969-10-01	54.7914940624137
1969-11-01	53.3112582781457
1969-12-01	51.1583011583012
1970-01-01	49.5867768595041
1970-02-01	49.9862372694743
1970-03-01	52.5708001099808
1970-04-01	54.6827794561934
1970-05-01	55.8056546802086
1970-06-01	55.8815464765561
1970-07-01	55.4824561403509
1970-08-01	54.3365253077975
1970-09-01	54.8660470202296
1970-10-01	54.4784270890224
1970-11-01	52.6875852660300
1970-12-01	51.1189956331878
1971-01-01	49.5770804911323
1971-02-01	49.3864194164167
1971-03-01	52.8867102396514
1971-04-01	53.7666576013054
1971-05-01	54.1723294373471
1971-06-01	54.5207711105077
1971-07-01	54.2198100407056
1971-08-01	53.4291135809162
1971-09-01	52.8567560249120
1971-10-01	53.2593995131187
1971-11-01	52.3538961038961
1971-12-01	49.9864682002706
1972-01-01	49.1750067622397
1972-02-01	48.6720867208672
1972-03-01	50.6641366223909
1972-04-01	51.7204009753454
1972-05-01	52.9872938632063
1972-06-01	52.7154823020805
1972-07-01	52.7189927672114
1972-08-01	52.3949692266524
1972-09-01	52.3414503612523
1972-10-01	53.2588454376164
1972-11-01	52.1287919105907
1972-12-01	50.9715198296513
1973-01-01	50.3455608718767
1973-02-01	50.3585657370518
1973-03-01	51.5932023366968
1973-04-01	52.3354564755839
1973-05-01	52.6106546514710
1973-06-01	53.7728355837967
1973-07-01	53.3509933774834
1973-08-01	52.1555144141761
1973-09-01	52.8790279978870
1973-10-01	54.4494322682862
1973-11-01	52.7733755942948
1973-12-01	49.4586744124637
1974-01-01	48.2058047493404
1974-02-01	48.8145416227608
1974-03-01	50.0791139240506
1974-04-01	51.6332982086407
1974-05-01	52.4197790636507
1974-06-01	52.1670606776990
1974-07-01	51.2490139363660
1974-08-01	50.9711286089239
1974-09-01	51.2598425196850
1974-10-01	51.6272965879265
1974-11-01	50.2624671916010
1974-12-01	48.2550511676725
1975-01-01	46.7382761330888
1975-02-01	47.1989528795812
1975-03-01	48.7689889994762
1975-04-01	49.8168498168498
1975-05-01	51.6718913270637
1975-06-01	52.1784503000261
1975-07-01	51.6962421711900
1975-08-01	51.0299869621904
1975-09-01	50.8333333333333
1975-10-01	50.7544224765869
1975-11-01	49.5835502342530
1975-12-01	48.1924577373212
1976-01-01	47.0771628994544
1976-02-01	47.4258970358814
1976-03-01	49.2327698309493
1976-04-01	50.3376623376623
1976-05-01	51.0241120041483
1976-06-01	51.1790619331433
1976-07-01	51.5434500648508
1976-08-01	51.2296142894124
1976-09-01	51.3702171664943
1976-10-01	51.1375387797311
1976-11-01	49.9870700801655
1976-12-01	49.0307573016283
1977-01-01	47.9607640681466
1977-02-01	48.0247869868319
1977-03-01	49.4321115126484
1977-04-01	51.8709677419355
1977-05-01	52.8214377737696
1977-06-01	52.9108706852138
1977-07-01	52.7820710973725
1977-08-01	51.9423720092616
1977-09-01	52.2487792341300
1977-10-01	52.0678140251734
1977-11-01	51.4124293785311
1977-12-01	50.5522733110712
1978-01-01	48.8712160082093
1978-02-01	49.1538461538462
1978-03-01	50.5514234419082
1978-04-01	52.2028688524590
1978-05-01	53.8736895934544
1978-06-01	54.4222903885481
1978-07-01	53.2464212678937
1978-08-01	52.7565084226646
1978-09-01	53.0747639704006
1978-10-01	53.1871494135645
1978-11-01	52.1661569826707
1978-12-01	51.2114256567202
1979-01-01	50.4203821656051
1979-02-01	49.9745287824758
1979-03-01	50.9039979628215
1979-04-01	52.8873060290003
1979-05-01	54.1454730417090
1979-06-01	53.9771283354511
1979-07-01	53.6721728081321
1979-08-01	53.4535297105130
1979-09-01	53.3620908398884
1979-10-01	53.7798072044647
1979-11-01	52.6462395543175
1979-12-01	51.1015446948595
1980-01-01	49.8734817813765
1980-02-01	49.9873449759554
1980-03-01	51.1133603238866
1980-04-01	53.1447335185653
1980-05-01	54.0499621498864
1980-06-01	54.4996218805142
1980-07-01	54.2633703329970
1980-08-01	53.8907076303198
1980-09-01	53.8983903420523
1980-10-01	53.4305101784368
1980-11-01	52.7373179306881
1980-12-01	51.5829145728643
1981-01-01	50.2008032128514
1981-02-01	49.9497991967872
1981-03-01	51.2299196787149
1981-04-01	53.6646586345382
1981-05-01	54.4154540893126
1981-06-01	54.2262352646100
1981-07-01	53.9387857501254
1981-08-01	53.5705337008269
1981-09-01	53.6438767843726
1981-10-01	53.7806710065098
1981-11-01	53.5803705558338
1981-12-01	52.7833500501504
1982-01-01	51.2384288216162
1982-02-01	51.1116662503123
1982-03-01	52.4868782804299
1982-04-01	53.8442336495257
1982-05-01	54.8604187437687
1982-06-01	54.6902214481214
1982-07-01	54.0702016430172
1982-08-01	53.6264282165922
1982-09-01	53.9836187639613
1982-10-01	54.4507810562856
1982-11-01	53.6972704714640
1982-12-01	53.4260178748759
1983-01-01	52.4764735017335
1983-02-01	52.4245423057892
1983-03-01	53.8270993311865
1983-04-01	55.3686293913904
1983-05-01	56.1433868974042
1983-06-01	55.8627499382868
1983-07-01	55.5939738206965
1983-08-01	55.4596992851861
1983-09-01	55.6622353520433
1983-10-01	55.5746984986463
1983-11-01	54.6371463714637
1983-12-01	53.2480314960630
1984-01-01	51.9292209388056
1984-02-01	52.0157325467060
1984-03-01	53.5626535626536
1984-04-01	55.2747791952895
1984-05-01	55.8607160372732
1984-06-01	56.2959333659971
1984-07-01	55.8765915768854
1984-08-01	55.3654363236373
1984-09-01	56.0136618687485
1984-10-01	56.1630461313156
1984-11-01	54.9756097560976
1984-12-01	53.6246033683183
1985-01-01	52.8651548402829
1985-02-01	52.8881306361199
1985-03-01	53.7673738112655
1985-04-01	55.5338859093125
1985-05-01	56.0993425858291
1985-06-01	55.9260160623023
1985-07-01	55.6798832400876
1985-08-01	55.3367371748116
1985-09-01	55.8709364386220
1985-10-01	55.7682985942802
1985-11-01	54.7699757869249
1985-12-01	53.1136418706082
1986-01-01	53.1106269668361
1986-02-01	53.0705996131528
1986-03-01	54.1565973900435
1986-04-01	55.7139405653540
1986-05-01	55.9322033898305
1986-06-01	56.3588007736944
1986-07-01	56.1746261456826
1986-08-01	55.5849783341358
1986-09-01	55.5982700624700
1986-10-01	55.5822328931573
1986-11-01	54.7922171510930
1986-12-01	53.6649843787551
1987-01-01	52.8790786948177
1987-02-01	52.9030710172745
1987-03-01	54.0637736753776
1987-04-01	55.8830577522166
1987-05-01	56.6634707574305
1987-06-01	56.5061107117182
1987-07-01	55.8267528116774
1987-08-01	55.6112702960840
1987-09-01	55.8577905034598
1987-10-01	55.6217246307766
1987-11-01	55.3176302640971
1987-12-01	54.6711153479504
1988-01-01	53.7821122740247
1988-02-01	53.4158533682457
1988-03-01	54.6774577481552
1988-04-01	56.3925855513308
1988-05-01	57.1191267204556
1988-06-01	56.7529076667458
1988-07-01	56.5867552812722
1988-08-01	56.0322351268073
1988-09-01	56.1258278145695
1988-10-01	55.8809636277752
1988-11-01	55.3116147308782
1988-12-01	54.9692380501656
1989-01-01	54.0770503427086
1989-02-01	54.3478260869565
1989-03-01	55.5293005671078
1989-04-01	57.1124763705104
1989-05-01	57.9344494223061
1989-06-01	57.9740871613663
1989-07-01	57.4793875147232
1989-08-01	56.7968015051740
1989-09-01	56.8379075768238
1989-10-01	56.9216330361333
1989-11-01	56.6870014077898
1989-12-01	56.0328638497653
1990-01-01	55.2242310401503
1990-02-01	55.5320648343904
1990-03-01	56.6799718243719
1990-04-01	57.9638752052545
1990-05-01	58.6610486891386
1990-06-01	58.5205992509363
1990-07-01	58.1302717900656
1990-08-01	57.5672514619883
1990-09-01	57.8996499416570
1990-10-01	57.6689976689977
1990-11-01	57.5531169740836
1990-12-01	56.9223573433115
1991-01-01	56.2222741069344
1991-02-01	56.3419761737912
1991-03-01	57.0361726954492
1991-04-01	58.5684308696666
1991-05-01	59.3006993006993
1991-06-01	59.4317652538426
1991-07-01	58.8769804287046
1991-08-01	58.7113282158642
1991-09-01	58.6102719033233
1991-10-01	58.5076708507671
1991-11-01	58.6102719033233
1991-12-01	58.1974848625990
1992-01-01	56.5187078782245
1992-02-01	56.9670227589410
1992-03-01	57.6905204460966
1992-04-01	58.7249883666822
1992-05-01	59.5448211797492
1992-06-01	59.6336656619522
1992-07-01	58.6078886310905
1992-08-01	58.5495829471733
1992-09-01	58.7364036102754
1992-10-01	59.0930124942156
1992-11-01	58.9446887294608
1992-12-01	58.2888940412706
1993-01-01	56.7592592592593
1993-02-01	56.1935633248437
1993-03-01	57.1560907827698
1993-04-01	58.8330632090762
1993-05-01	59.4775774387425
1993-06-01	59.4407210538479
1993-07-01	58.8480222068008
1993-08-01	58.5450346420323
1993-09-01	58.5737364412647
1993-10-01	58.8180978762696
1993-11-01	58.6620530565167
1993-12-01	58.2582582582583
1994-01-01	57.0867959372114
1994-02-01	56.6081330868762
1994-03-01	57.6514100785946
1994-04-01	59.5419847328244
1994-05-01	59.9538106235566
1994-06-01	59.6398060494112
1994-07-01	58.9091749480009
1994-08-01	58.4256694367498
1994-09-01	58.4640221402214
1994-10-01	58.6254612546126
1994-11-01	58.2929642445213
1994-12-01	57.6212471131640
1995-01-01	57.1132118976251
1995-02-01	57.0339570339570
1995-03-01	57.9616362375780
1995-04-01	59.2138728323700
1995-05-01	59.5523765574527
1995-06-01	59.6539792387543
1995-07-01	59.0520231213873
1995-08-01	58.5258780036969
1995-09-01	59.1643582640813
1995-10-01	58.6294416243655
1995-11-01	58.2103321033210
1995-12-01	57.8691934365611
1996-01-01	57.2979214780600
1996-02-01	56.9743233865371
1996-03-01	58.3757519666821
1996-04-01	59.5045149340125
1996-05-01	59.7363552266420
1996-06-01	60.3420383637624
1996-07-01	60.0833526279231
1996-08-01	59.1392873669597
1996-09-01	59.6487173561359
1996-10-01	59.4407210538479
1996-11-01	58.7569316081331
1996-12-01	58.0592867068087
1997-01-01	57.9736902838680
1997-02-01	58.3487511563367
1997-03-01	58.8208092485549
1997-04-01	59.9213691026827
1997-05-01	60.4758604758605
1997-06-01	60.8404525513738
1997-07-01	60.5183985188614
1997-08-01	60.0370027752082
1997-09-01	60.4618937644342
1997-10-01	60.5311778290993
1997-11-01	59.4132594132594
1997-12-01	58.9951377633712
1998-01-01	59.0330788804071
1998-02-01	58.4914391485423
1998-03-01	59.2035193331790
1998-04-01	60.2083333333333
1998-05-01	60.8745950948635
1998-06-01	60.6845513413506
1998-07-01	60.2638278176348
1998-08-01	60.5135322692575
1998-09-01	60.2404068423486
1998-10-01	60.0184885602034
1998-11-01	59.5469255663430
1998-12-01	58.7117701575533
1999-01-01	58.0555555555556
1999-02-01	58.1190641649294
1999-03-01	59.3373493975904
1999-04-01	60.3896103896104
1999-05-01	60.7093184979138
1999-06-01	60.2364943194992
1999-07-01	59.9489795918367
1999-08-01	60.2780996523754
1999-09-01	60.2177942539388
1999-10-01	59.7405605744730
1999-11-01	59.5414543770264
1999-12-01	58.7198515769944
2000-01-01	58.2193368884767
2000-02-01	58.1071677105080
2000-03-01	58.7320018578727
2000-04-01	60.3252032520325
2000-05-01	60.5990248432784
2000-06-01	60.4316546762590
2000-07-01	60.1440855217290
2000-08-01	59.8513011152416
2000-09-01	59.9303135888502
2000-10-01	60.2647468648398
2000-11-01	60.0882284652891
2000-12-01	59.2102206736353
2001-01-01	59.3582887700535
2001-02-01	59.5848880597015
2001-03-01	59.5432300163132
2001-04-01	60.1771974819305
2001-05-01	60.8057755006986
2001-06-01	60.7591988821612
2001-07-01	60.3870366052693
2001-08-01	60.0000000000000
2001-09-01	59.9860172453973
2001-10-01	60.2793946449360
2001-11-01	60.5954873226332
2001-12-01	59.4361602982293
2002-01-01	58.7713151132913
2002-02-01	58.8909686476369
2002-03-01	59.4335205992509
2002-04-01	59.7938144329897
2002-05-01	60.0280833138310
2002-06-01	60.4351895180159
2002-07-01	60.2765408952426
2002-08-01	60.0609756097561
2002-09-01	60.0843288826423
2002-10-01	60.3371575743386
2002-11-01	60.3424015009381
2002-12-01	59.4594594594595
2003-01-01	58.8152327221439
2003-02-01	58.5256712199717
2003-03-01	59.6421003060984
2003-04-01	60.1790763430726
2003-05-01	60.5739825923312
2003-06-01	61.0575793184489
2003-07-01	60.5789597552365
2003-08-01	60.1788656154389
2003-09-01	60.2775164628410
2003-10-01	60.4656632173095
2003-11-01	60.1411764705882
2003-12-01	59.7546591177164
2004-01-01	59.0994813767091
2004-02-01	59.1123701605288
2004-03-01	59.9009900990099
2004-04-01	60.4333490343853
2004-05-01	60.6410558567052
2004-06-01	60.7227208313651
2004-07-01	60.9075868588986
2004-08-01	61.0401891252955
2004-09-01	60.9127453298652
2004-10-01	60.9116674539443
2004-11-01	59.8912786575278
2004-12-01	59.5689246802463
2005-01-01	59.6968979398532
2005-02-01	59.5023696682464
2005-03-01	59.9857685009488
2005-04-01	61.0926365795724
2005-05-01	62.0256166982922
2005-06-01	61.5201900237530
2005-07-01	61.5366317792578
2005-08-01	61.3501307344901
2005-09-01	61.6060822047992
2005-10-01	61.5549215406562
2005-11-01	60.5188005711566
2005-12-01	60.0953516090584
2006-01-01	60.2099236641221
2006-02-01	60.1767797419971
2006-03-01	60.3390639923591
2006-04-01	61.3397129186603
2006-05-01	62.4043977055449
2006-06-01	62.1414913957935
2006-07-01	61.7097701149425
2006-08-01	61.8830857690465
2006-09-01	61.9937694704050
2006-10-01	61.9606903163950
2006-11-01	61.6970278044104
2006-12-01	60.9134615384615
2007-01-01	60.3809983120328
2007-02-01	60.6323919864832
2007-03-01	61.3378411011833
2007-04-01	62.3913043478261
2007-05-01	63.1553515341870
2007-06-01	62.7867664815262
2007-07-01	62.1432027092404
2007-08-01	62.2033898305085
2007-09-01	62.0973601356261
2007-10-01	62.2819767441860
2007-11-01	62.6424242424242
2007-12-01	62.1818181818182
2008-01-01	61.3741199320223
2008-02-01	61.0651750972763
2008-03-01	61.8734793187348
2008-04-01	62.9810034096444
2008-05-01	63.1386861313869
2008-06-01	63.2001948368242
2008-07-01	62.5182659522650
2008-08-01	62.4298609416931
2008-09-01	62.7288259702221
2008-10-01	62.3443223443223
2008-11-01	62.8941579076020
2008-12-01	62.5152923905065
2009-01-01	62.2549019607843
2009-02-01	62.1840490797546
2009-03-01	62.1163761355266
2009-04-01	63.2342098795773
2009-05-01	63.4374231620359
2009-06-01	63.3636587164986
2009-07-01	63.1423653798869
2009-08-01	63.6967757814423
2009-09-01	64.0394088669951
2009-10-01	63.2175412663218
2009-11-01	63.3899975363390
2009-12-01	62.9346485819975
2010-01-01	62.4197530864198
2010-02-01	62.4474660074166
2010-03-01	62.5308947108255
2010-04-01	63.4001484780995
2010-05-01	63.7645312886470
2010-06-01	63.3308623671856
2010-07-01	63.3102424542306
2010-08-01	63.6138613861386
2010-09-01	64.3794897200892
2010-10-01	63.9267145333003
2010-11-01	63.5396039603960
2010-12-01	62.9391390400792
2011-01-01	62.7319970304380
2011-02-01	63.0106461995544
2011-03-01	63.6134876698540
2011-04-01	64.2659279778393
2011-05-01	64.5534591194968
2011-06-01	64.6200301962758
2011-07-01	64.0412682435833
2011-08-01	63.9120545868082
2011-09-01	63.5007458975634
2011-10-01	63.5911464809749
2011-11-01	63.5888501742160
2011-12-01	62.8051818634778
2012-01-01	62.0989803531460
2012-02-01	62.6743027888446
2012-03-01	62.7709942686270
2012-04-01	63.8292561158263
2012-05-01	64.0589852536866
2012-06-01	63.8159539884971
2012-07-01	63.6955433149725
2012-08-01	63.5816403310760
2012-09-01	63.6203866432337
2012-10-01	63.9105302839910
2012-11-01	63.9909411172622
2012-12-01	63.2838076051372
2013-01-01	63.5927235977766
2013-02-01	64.2115920020248
2013-03-01	64.3436391282311
2013-04-01	65.4236428209031
2013-05-01	65.4305308610617
2013-06-01	64.8957803762074
2013-07-01	64.7328244274809
2013-08-01	65.0866462793068
2013-09-01	65.4855977568188
2013-10-01	66.0204081632653
2013-11-01	66.0705160960654
2013-12-01	65.4652351738241
2014-01-01	64.8385443362378
2014-02-01	65.0655021834061
2014-03-01	65.2006172839506
2014-04-01	65.7223796033994
2014-05-01	66.4175257731959
2014-06-01	66.6236781016250
2014-07-01	66.2967741935484
2014-08-01	65.9943108352728
2014-09-01	66.6839244110795
2014-10-01	66.8740279937792
2014-11-01	66.7704280155642
2014-12-01	66.5974025974026
2015-01-01	65.8250910983862
2015-02-01	66.0411780036487
2015-03-01	66.0234680573664
2015-04-01	66.4839467501958
2015-05-01	66.9453880324014
2015-06-01	67.5541634038110
2015-07-01	67.1723777138373
2015-08-01	66.9897825517422
2015-09-01	67.7495415247577
2015-10-01	67.6362683438155
2015-11-01	67.2436401783373
2015-12-01	67.2884918549658
2016-01-01	67.7538137822199
2016-02-01	67.0532419609910
2016-03-01	67.1677215189873
2016-04-01	67.8637443886982
2016-05-01	67.6874340021119
2016-06-01	68.5503036704515
2016-07-01	68.5517970401691
2016-08-01	68.6954220693305
2016-09-01	68.9088983050848
2016-10-01	68.6523696055070
2016-11-01	68.6092715231788
2016-12-01	68.7632696390658
2017-01-01	68.6555290373906
2017-02-01	68.0647730289355
2017-03-01	68.0127523910733
2017-04-01	69.1059073975519
2017-05-01	69.6010638297872
2017-06-01	69.9760447165292
2017-07-01	69.7179350718467
2017-08-01	69.8907540634159
2017-09-01	70.2450719232818
2017-10-01	69.9280191948814
2017-11-01	70.1253667644705
2017-12-01	70.0587606837607
2018-01-01	70.0909577314072
2018-02-01	70.3882195448460
2018-03-01	70.9271168274384
2018-04-01	71.4898177920686
2018-05-01	71.2409541677834
2018-06-01	71.3176218532405
2018-07-01	71.7006437768240
2018-08-01	71.8430951101558
2018-09-01	72.0730397422127