Month	Percent
1978-02-01	73.0534776
1978-03-01	70.9869430
1978-04-01	70.1626785
1978-05-01	69.5793889
1978-06-01	69.2661114
1978-07-01	69.0751195
1978-08-01	68.3870949
1978-09-01	68.3291289
1978-10-01	68.1081812
1978-11-01	67.6021753
1978-12-01	73.7510440
1979-01-01	72.6620347
1979-02-01	72.0995337
1979-03-01	71.0004369
1979-04-01	70.3970911
1979-05-01	70.0578603
1979-06-01	69.0784341
1979-07-01	69.0599693
1979-08-01	68.6580844
1979-09-01	70.0627378
1979-10-01	68.9008466
1979-11-01	69.1038037
1979-12-01	74.6237296
1980-01-01	73.5342485
1980-02-01	73.1488315
1980-03-01	72.0986466
1980-04-01	71.3164091
1980-05-01	72.4208164
1980-06-01	71.6394973
1980-07-01	71.3867180
1980-08-01	70.7862356
1980-09-01	72.1718319
1980-10-01	70.7423168
1980-11-01	70.4590231
1980-12-01	76.3983878
1981-01-01	74.3575490
1981-02-01	73.9838677
1981-03-01	73.2228358
1981-04-01	72.3399296
1981-05-01	72.2289920
1981-06-01	71.1752087
1981-07-01	71.3576341
1981-08-01	70.2498622
1981-09-01	71.8991894
1981-10-01	70.1475648
1981-11-01	69.5506875
1981-12-01	75.4060801
1982-01-01	74.0725403
1982-02-01	74.0626856
1982-03-01	73.0105858
1982-04-01	71.5597977
1982-05-01	71.9302177
1982-06-01	70.4277712
1982-07-01	70.5525658
1982-08-01	69.6172595
1982-09-01	70.6724791
1982-10-01	70.4409232
1982-11-01	69.8000580
1982-12-01	74.9084973
1983-01-01	73.6497625
1983-02-01	73.0178092
1983-03-01	71.7929961
1983-04-01	70.9108979
1983-05-01	71.5472686
1983-06-01	70.0055355
1983-07-01	70.0861716
1983-08-01	69.1473283
1983-09-01	70.9949161
1983-10-01	69.7664123
1983-11-01	69.7829241
1983-12-01	74.7929762
1984-01-01	73.4048412
1984-02-01	72.5902136
1984-03-01	72.4351495
1984-04-01	71.7427173
1984-05-01	71.1549838
1984-06-01	70.1153858
1984-07-01	70.2529252
1984-08-01	69.1834398
1984-09-01	70.3452865
1984-10-01	68.7689007
1984-11-01	69.0429038
1984-12-01	73.2174703
1985-01-01	72.9627887
1985-02-01	72.7777918
1985-03-01	71.9289097
1985-04-01	70.6813559
1985-05-01	71.3410746
1985-06-01	70.5472907
1985-07-01	69.9078014
1985-08-01	69.3990923
1985-09-01	71.7071300
1985-10-01	69.3344431
1985-11-01	70.0580341
1985-12-01	73.9645216
1986-01-01	73.9025912
1986-02-01	73.5582766
1986-03-01	72.9667695
1986-04-01	73.1596751
1986-05-01	72.0505025
1986-06-01	70.9048109
1986-07-01	70.8763711
1986-08-01	69.5907963
1986-09-01	71.6347879
1986-10-01	70.3215633
1986-11-01	69.6087206
1986-12-01	75.5213786
1987-01-01	73.6145879
1987-02-01	73.2607719
1987-03-01	72.6188711
1987-04-01	71.7316081
1987-05-01	70.6729864
1987-06-01	70.0986515
1987-07-01	71.5846153
1987-08-01	68.6840061
1987-09-01	69.6826390
1987-10-01	69.6272670
1987-11-01	68.9571681
1987-12-01	75.0253292
1988-01-01	73.9043290
1988-02-01	72.1958197
1988-03-01	72.5797307
1988-04-01	72.0784680
1988-05-01	70.2942652
1988-06-01	69.7404306
1988-07-01	69.4546215
1988-08-01	69.1290422
1988-09-01	70.3930677
1988-10-01	69.3524967
1988-11-01	68.5194560
1988-12-01	74.8318596
1989-01-01	74.2540233
1989-02-01	73.8865608
1989-03-01	72.2115925
1989-04-01	71.8566070
1989-05-01	71.8424072
1989-06-01	70.8813636
1989-07-01	71.8565607
1989-08-01	70.4803114
1989-09-01	71.8581493
1989-10-01	71.2642610
1989-11-01	69.8372401
1989-12-01	74.9046107
1990-01-01	74.6172202
1990-02-01	73.2498899
1990-03-01	72.1512725
1990-04-01	72.1727484
1990-05-01	71.9397759
1990-06-01	70.6507167
1990-07-01	72.3373609
1990-08-01	70.3645262
1990-09-01	71.4685085
1990-10-01	70.5793994
1990-11-01	69.8969850
1990-12-01	75.8170606
1991-01-01	73.4108274
1991-02-01	71.6959551
1991-03-01	70.7673752
1991-04-01	71.2200118
1991-05-01	69.4448090
1991-06-01	67.4930610
1991-07-01	67.7966793
1991-08-01	67.3200612
1991-09-01	68.9744323
1991-10-01	67.5183683
1991-11-01	66.7801866
1991-12-01	73.4710235
1992-01-01	71.8066007
1992-02-01	70.8522485
1992-03-01	69.6142675
1992-04-01	69.0775627
1992-05-01	68.8690067
1992-06-01	68.0244757
1992-07-01	69.2894357
1992-08-01	67.8881099
1992-09-01	69.0983784
1992-10-01	68.3930376
1992-11-01	66.6007258
1992-12-01	73.1225696
1993-01-01	72.7792690
1993-02-01	70.7057567
1993-03-01	69.0365989
1993-04-01	67.6037701
1993-05-01	67.5269708
1993-06-01	67.1977791
1993-07-01	67.4431515
1993-08-01	66.3109479
1993-09-01	68.2560451
1993-10-01	67.5525728
1993-11-01	67.3318283
1993-12-01	72.9653905
1994-01-01	73.2475676
1994-02-01	71.9679446
1994-03-01	71.2210885
1994-04-01	69.9337282
1994-05-01	69.2322738
1994-06-01	68.9406187
1994-07-01	70.0868390
1994-08-01	68.2262756
1994-09-01	70.5405414
1994-10-01	69.5831147
1994-11-01	69.1662448
1994-12-01	74.7688779
1995-01-01	73.6368665
1995-02-01	73.5964664
1995-03-01	71.8553058
1995-04-01	71.6211817
1995-05-01	71.0374406
1995-06-01	70.6735266
1995-07-01	70.6256740
1995-08-01	69.6037788
1995-09-01	71.5901706
1995-10-01	70.3339599
1995-11-01	70.2910991
1995-12-01	74.8184001
1996-01-01	74.5900121
1996-02-01	72.8680487
1996-03-01	71.7302023
1996-04-01	71.9588757
1996-05-01	71.3403168
1996-06-01	70.1546543
1996-07-01	71.0931124
1996-08-01	70.0588060
1996-09-01	71.2660003
1996-10-01	70.7079736
1996-11-01	68.9925725
1996-12-01	75.1916923
1997-01-01	73.8388704
1997-02-01	72.1488359
1997-03-01	71.1887809
1997-04-01	70.3675154
1997-05-01	69.6331797
1997-06-01	68.5364495
1997-07-01	68.8963521
1997-08-01	66.6352159
1997-09-01	69.0651664
1997-10-01	68.8155300
1997-11-01	68.4250691
1997-12-01	73.1268179
1998-01-01	72.7937005
1998-02-01	71.1175849
1998-03-01	70.0709146
1998-04-01	69.5179076
1998-05-01	68.9140519
1998-06-01	68.7432842
1998-07-01	68.7546612
1998-08-01	67.3952189
1998-09-01	70.3692140
1998-10-01	69.1359857
1998-11-01	68.5543722
1998-12-01	73.0627283
1999-01-01	71.8062375
1999-02-01	71.2488867
1999-03-01	70.4950674
1999-04-01	70.1952359
1999-05-01	69.0154508
1999-06-01	68.3651084
1999-07-01	68.9136939
1999-08-01	67.5950980
1999-09-01	70.3105511
1999-10-01	69.1852834
1999-11-01	68.1088102
1999-12-01	73.8536538
2000-01-01	71.8769228
2000-02-01	71.4738351
2000-03-01	70.4804575
2000-04-01	70.4014920
2000-05-01	69.6579493
2000-06-01	68.7892677
2000-07-01	70.1915735
2000-08-01	68.0818693
2000-09-01	70.3347958
2000-10-01	68.9579467
2000-11-01	68.3864170
2000-12-01	73.5528974
2001-01-01	72.2985221
2001-02-01	71.7162495
2001-03-01	70.3365111
2001-04-01	70.4274357
2001-05-01	70.5489724
2001-06-01	69.9938107
2001-07-01	70.4750791
2001-08-01	68.7424770
2001-09-01	70.5197846
2001-10-01	69.8451796
2001-11-01	69.1716063
2001-12-01	73.9905745
2002-01-01	72.7913228
2002-02-01	71.9524494
2002-03-01	69.8416016
2002-04-01	69.1693475
2002-05-01	68.6636380
2002-06-01	68.5178716
2002-07-01	68.4185454
2002-08-01	68.0929446
2002-09-01	70.6047690
2002-10-01	69.2178412
2002-11-01	68.6116345
2002-12-01	73.8405073
2003-01-01	73.3650615
2003-02-01	72.1650267
2003-03-01	70.4002299
2003-04-01	69.7850888
2003-05-01	69.4406908
2003-06-01	68.3868780
2003-07-01	68.8439372
2003-08-01	67.6965667
2003-09-01	69.7719824
2003-10-01	69.6294153
2003-11-01	68.8802959
2003-12-01	74.3235064
2004-01-01	72.8569829
2004-02-01	71.9302606
2004-03-01	70.7005247
2004-04-01	70.6908305
2004-05-01	69.5525896
2004-06-01	68.7448406
2004-07-01	69.0531279
2004-08-01	66.8140393
2004-09-01	69.6994839
2004-10-01	68.9528112
2004-11-01	68.4120092
2004-12-01	74.2973441
2005-01-01	72.8785843
2005-02-01	72.1793153
2005-03-01	71.2602439
2005-04-01	71.2953753
2005-05-01	70.4903838
2005-06-01	69.9462138
2005-07-01	70.0466811
2005-08-01	68.7320091
2005-09-01	70.5807318
2005-10-01	69.4364351
2005-11-01	69.1899999
2005-12-01	73.7152816
2006-01-01	72.7473254
2006-02-01	72.2792423
2006-03-01	70.9995796
2006-04-01	70.6981969
2006-05-01	69.7365925
2006-06-01	70.0613211
2006-07-01	70.1540787
2006-08-01	68.9271996
2006-09-01	70.9904272
2006-10-01	69.7202956
2006-11-01	68.9356502
2006-12-01	74.3810625
2007-01-01	72.6815522
2007-02-01	72.1001628
2007-03-01	70.8491565
2007-04-01	71.0338623
2007-05-01	70.4655487
2007-06-01	69.1022636
2007-07-01	69.6260320
2007-08-01	68.6287135
2007-09-01	70.1583373
2007-10-01	70.3199620
2007-11-01	69.4721391
2007-12-01	74.7033611
2008-01-01	73.9735276
2008-02-01	72.3261890
2008-03-01	71.3063946
2008-04-01	71.7474959
2008-05-01	70.5007600
2008-06-01	70.3402419
2008-07-01	70.3622069
2008-08-01	68.0415991
2008-09-01	70.0503392
2008-10-01	69.5686230
2008-11-01	67.8901898
2008-12-01	72.9467956
2009-01-01	71.1077815
2009-02-01	71.2712055
2009-03-01	70.8676928
2009-04-01	69.8266731
2009-05-01	68.6834667
2009-06-01	67.7759840
2009-07-01	67.6511399
2009-08-01	66.1956985
2009-09-01	68.2308375
2009-10-01	68.0543103
2009-11-01	67.4658056
2009-12-01	72.1244533
2010-01-01	70.7525788
2010-02-01	70.1408953
2010-03-01	69.4726331
2010-04-01	68.9871394
2010-05-01	67.6379723
2010-06-01	67.1942112
2010-07-01	67.6783769
2010-08-01	65.6472994
2010-09-01	67.3228179
2010-10-01	67.8724831
2010-11-01	66.7456056
2010-12-01	71.6569095
2011-01-01	70.7580543
2011-02-01	70.4739525
2011-03-01	68.8843910
2011-04-01	67.9789400
2011-05-01	67.7100795
2011-06-01	66.7622574
2011-07-01	67.0230254
2011-08-01	66.0885415
2011-09-01	68.3315856
2011-10-01	67.6230939
2011-11-01	66.0759822
2011-12-01	70.0192700
2012-01-01	69.7173076
2012-02-01	69.3674796
2012-03-01	68.2865242
2012-04-01	67.3369157
2012-05-01	68.1698198
2012-06-01	66.7819724
2012-07-01	66.3092743
2012-08-01	64.6794823
2012-09-01	67.0676890
2012-10-01	66.5185305
2012-11-01	65.5591996
2012-12-01	70.4688343
2013-01-01	69.5183702
2013-02-01	68.3784054
2013-03-01	67.4205729
2013-04-01	67.1999200
2013-05-01	66.7005211
2013-06-01	65.8051018
2013-07-01	66.5091159
2013-08-01	64.8580264
2013-09-01	66.3306631
2013-10-01	65.9902776
2013-11-01	64.8089946
2013-12-01	68.4130230
2014-01-01	68.1978780
2014-02-01	67.6179368
2014-03-01	67.0424070
2014-04-01	66.3680781
2014-05-01	65.9482262
2014-06-01	65.6171490
2014-07-01	66.0154050
2014-08-01	64.9530490
2014-09-01	65.2979833
2014-10-01	65.8565081
2014-11-01	66.2722751
2014-12-01	69.7515809
2015-01-01	68.7668361
2015-02-01	68.7890309
2015-03-01	67.8970806
2015-04-01	67.3153130
2015-05-01	66.9319504
2015-06-01	66.3557451
2015-07-01	67.3334126
2015-08-01	64.7810863
2015-09-01	65.8792635
2015-10-01	66.4753154
2015-11-01	66.5055061
2015-12-01	70.3813621
2016-01-01	68.6552698
2016-02-01	68.4544138
2016-03-01	67.3271274
2016-04-01	67.1442493
2016-05-01	67.0811854
2016-06-01	66.5980881
2016-07-01	66.7581371
2016-08-01	64.7706206
2016-09-01	65.3705938
2016-10-01	65.0094785
2016-11-01	65.1166332
2016-12-01	69.1764265
2017-01-01	68.3772642
2017-02-01	67.6372161
2017-03-01	67.3632240
2017-04-01	66.6559156
2017-05-01	66.0568718
2017-06-01	65.8159351
2017-07-01	66.5345501
2017-08-01	65.5065357
2017-09-01	66.6145225
2017-10-01	65.5100878
2017-11-01	66.2848170
2017-12-01	70.1459193
2018-01-01	69.4812726
2018-02-01	69.6445952
2018-03-01	68.3370865
2018-04-01	68.2302745
2018-05-01	67.6916137
2018-06-01	67.4560846
2018-07-01	66.9163246
2018-08-01	66.2011396
2018-09-01	66.4294930