Month	Percent
1978-02-01	9.8269646
1978-03-01	8.7916423
1978-04-01	8.2268636
1978-05-01	8.1001963
1978-06-01	7.6770168
1978-07-01	7.2564648
1978-08-01	7.6135084
1978-09-01	7.2673429
1978-10-01	6.9593093
1978-11-01	7.1384226
1978-12-01	8.5019390
1979-01-01	8.7550855
1979-02-01	9.1823284
1979-03-01	8.6410214
1979-04-01	8.5640510
1979-05-01	8.0995479
1979-06-01	7.9318827
1979-07-01	7.8327691
1979-08-01	7.7625806
1979-09-01	8.2889620
1979-10-01	8.1155258
1979-11-01	7.4346046
1979-12-01	8.4022677
1980-01-01	8.4542348
1980-02-01	8.9096982
1980-03-01	8.1889059
1980-04-01	8.1700379
1980-05-01	7.9814458
1980-06-01	8.0868120
1980-07-01	7.3299508
1980-08-01	7.5168391
1980-09-01	7.7981576
1980-10-01	7.4006268
1980-11-01	7.0865746
1980-12-01	8.2485784
1981-01-01	8.2333151
1981-02-01	8.3082609
1981-03-01	8.2671911
1981-04-01	7.5716174
1981-05-01	7.3999033
1981-06-01	6.8724632
1981-07-01	7.2165325
1981-08-01	7.2131154
1981-09-01	7.1595068
1981-10-01	6.8165564
1981-11-01	6.8389785
1981-12-01	7.8843653
1982-01-01	8.2559292
1982-02-01	9.2310521
1982-03-01	8.6483317
1982-04-01	8.2997239
1982-05-01	8.3331114
1982-06-01	8.3108814
1982-07-01	7.8482448
1982-08-01	7.5096654
1982-09-01	8.3363662
1982-10-01	8.9797267
1982-11-01	8.8280205
1982-12-01	10.3894427
1983-01-01	10.5483974
1983-02-01	11.8640572
1983-03-01	11.3231451
1983-04-01	10.8121885
1983-05-01	10.9206091
1983-06-01	10.3790849
1983-07-01	9.9268802
1983-08-01	9.9803997
1983-09-01	10.7726465
1983-10-01	9.6697031
1983-11-01	9.0770402
1983-12-01	10.0725240
1984-01-01	10.4372333
1984-02-01	11.3916472
1984-03-01	10.8514314
1984-04-01	10.6956386
1984-05-01	9.4577042
1984-06-01	9.5902723
1984-07-01	8.8640908
1984-08-01	8.4107881
1984-09-01	8.9110800
1984-10-01	8.4141488
1984-11-01	8.4438765
1984-12-01	9.0816784
1985-01-01	9.5212796
1985-02-01	10.2049388
1985-03-01	9.9916260
1985-04-01	9.2371043
1985-05-01	8.8411097
1985-06-01	8.6652477
1985-07-01	7.9687358
1985-08-01	8.0615889
1985-09-01	8.6474893
1985-10-01	7.9498233
1985-11-01	8.0364869
1985-12-01	8.7208818
1986-01-01	9.0614778
1986-02-01	10.0925356
1986-03-01	9.6683881
1986-04-01	8.9770365
1986-05-01	8.5793529
1986-06-01	8.1608966
1986-07-01	8.4534874
1986-08-01	8.4278039
1986-09-01	8.8991665
1986-10-01	8.2723834
1986-11-01	7.8886490
1986-12-01	8.7769686
1987-01-01	9.1442811
1987-02-01	9.9556755
1987-03-01	10.1227492
1987-04-01	9.5163127
1987-05-01	8.7081486
1987-06-01	8.1480279
1987-07-01	8.2944984
1987-08-01	8.3569542
1987-09-01	8.1157730
1987-10-01	7.8693730
1987-11-01	7.6631083
1987-12-01	8.4235231
1988-01-01	8.9114448
1988-02-01	9.1647344
1988-03-01	9.2211756
1988-04-01	9.1046404
1988-05-01	8.2419053
1988-06-01	7.9323519
1988-07-01	6.9311672
1988-08-01	7.3236894
1988-09-01	7.4983652
1988-10-01	6.9132855
1988-11-01	6.7233765
1988-12-01	7.5858813
1989-01-01	8.0583659
1989-02-01	8.2137148
1989-03-01	7.5426175
1989-04-01	7.2100101
1989-05-01	7.0948532
1989-06-01	6.4568913
1989-07-01	6.5044757
1989-08-01	6.2303584
1989-09-01	6.5907857
1989-10-01	6.3197256
1989-11-01	6.0128344
1989-12-01	6.4491706
1990-01-01	7.1393402
1990-02-01	8.1152888
1990-03-01	7.1458082
1990-04-01	6.7892937
1990-05-01	6.8203539
1990-06-01	6.9340839
1990-07-01	6.9012046
1990-08-01	7.1569603
1990-09-01	7.4721179
1990-10-01	7.1990753
1990-11-01	7.0847373
1990-12-01	8.0134286
1991-01-01	8.8824916
1991-02-01	9.6269414
1991-03-01	9.5775591
1991-04-01	9.8348609
1991-05-01	9.1572586
1991-06-01	8.5998359
1991-07-01	8.9979832
1991-08-01	8.6120375
1991-09-01	9.4683045
1991-10-01	8.7279837
1991-11-01	8.9990841
1991-12-01	10.0357029
1992-01-01	10.5684703
1992-02-01	11.1778258
1992-03-01	10.5238027
1992-04-01	10.0340941
1992-05-01	9.7271397
1992-06-01	9.7518913
1992-07-01	9.6146441
1992-08-01	9.4238547
1992-09-01	9.7636547
1992-10-01	9.5772220
1992-11-01	9.2819164
1992-12-01	10.4203872
1993-01-01	10.5846568
1993-02-01	11.4026132
1993-03-01	10.7142770
1993-04-01	9.6911786
1993-05-01	9.5095967
1993-06-01	9.6950808
1993-07-01	9.4901366
1993-08-01	9.7817739
1993-09-01	10.0732064
1993-10-01	9.8087505
1993-11-01	9.8633805
1993-12-01	10.0984467
1994-01-01	10.8320706
1994-02-01	11.2588797
1994-03-01	10.4051235
1994-04-01	9.7707250
1994-05-01	9.2195081
1994-06-01	9.1745694
1994-07-01	8.9670961
1994-08-01	8.8229619
1994-09-01	9.1183194
1994-10-01	8.4338061
1994-11-01	8.3234335
1994-12-01	8.7920040
1995-01-01	9.1985356
1995-02-01	10.0918673
1995-03-01	9.2807294
1995-04-01	8.0084008
1995-05-01	7.8732639
1995-06-01	7.5946863
1995-07-01	7.3962978
1995-08-01	7.7135791
1995-09-01	7.8012530
1995-10-01	7.7158447
1995-11-01	7.7738691
1995-12-01	7.5830602
1996-01-01	8.4510157
1996-02-01	9.1886065
1996-03-01	8.5312695
1996-04-01	8.4853158
1996-05-01	8.2389520
1996-06-01	7.7498081
1996-07-01	8.0462923
1996-08-01	8.0785759
1996-09-01	8.4282190
1996-10-01	8.1489162
1996-11-01	7.7349610
1996-12-01	8.4606877
1997-01-01	8.9800470
1997-02-01	9.7601576
1997-03-01	8.8161348
1997-04-01	8.4692222
1997-05-01	8.3202647
1997-06-01	7.9074380
1997-07-01	7.5792961
1997-08-01	8.0610382
1997-09-01	7.5922879
1997-10-01	7.3778123
1997-11-01	7.1992134
1997-12-01	7.5401121
1998-01-01	8.2709553
1998-02-01	8.6075344
1998-03-01	8.1024124
1998-04-01	7.6498435
1998-05-01	7.3904158
1998-06-01	7.1447602
1998-07-01	6.9127588
1998-08-01	6.9237971
1998-09-01	7.3375161
1998-10-01	6.6894527
1998-11-01	6.9407869
1998-12-01	6.7321027
1999-01-01	7.3415965
1999-02-01	7.9387378
1999-03-01	7.5382873
1999-04-01	6.9399155
1999-05-01	6.8361696
1999-06-01	6.3193060
1999-07-01	5.9495179
1999-08-01	6.4643676
1999-09-01	6.8903243
1999-10-01	6.2308945
1999-11-01	5.9029753
1999-12-01	6.2820554
2000-01-01	7.0317440
2000-02-01	7.7579029
2000-03-01	7.1606557
2000-04-01	6.5430734
2000-05-01	6.4753504
2000-06-01	5.7262701
2000-07-01	5.1348229
2000-08-01	5.4348412
2000-09-01	5.5921574
2000-10-01	5.3107727
2000-11-01	5.5230423
2000-12-01	5.7538998
2001-01-01	6.0696877
2001-02-01	7.1454043
2001-03-01	6.6500939
2001-04-01	6.6707048
2001-05-01	6.7661413
2001-06-01	6.4837702
2001-07-01	5.9496740
2001-08-01	6.4107695
2001-09-01	6.5255297
2001-10-01	6.5633079
2001-11-01	6.0755855
2001-12-01	6.6337601
2002-01-01	7.3390567
2002-02-01	7.1496106
2002-03-01	6.4979121
2002-04-01	6.0249440
2002-05-01	6.0589561
2002-06-01	6.3114351
2002-07-01	5.5721259
2002-08-01	5.9768355
2002-09-01	6.3092165
2002-10-01	5.7480231
2002-11-01	5.7056651
2002-12-01	5.9886676
2003-01-01	6.4747634
2003-02-01	6.7913318
2003-03-01	6.7972749
2003-04-01	5.9730148
2003-05-01	6.0891906
2003-06-01	5.7901729
2003-07-01	5.6526950
2003-08-01	5.7442119
2003-09-01	5.9802090
2003-10-01	5.5394888
2003-11-01	5.5558964
2003-12-01	5.9687255
2004-01-01	6.3462921
2004-02-01	6.8765183
2004-03-01	6.1239344
2004-04-01	5.7294564
2004-05-01	5.5211639
2004-06-01	5.4475285
2004-07-01	5.3319370
2004-08-01	5.4650426
2004-09-01	5.3798311
2004-10-01	4.8943933
2004-11-01	4.8238814
2004-12-01	5.1650541
2005-01-01	5.7858529
2005-02-01	6.2211796
2005-03-01	6.0073582
2005-04-01	5.5208433
2005-05-01	5.3821080
2005-06-01	5.1134938
2005-07-01	4.9101718
2005-08-01	4.7974055
2005-09-01	5.0977621
2005-10-01	4.8026363
2005-11-01	4.5726646
2005-12-01	5.0473374
2006-01-01	5.7154382
2006-02-01	6.0015788
2006-03-01	5.3934427
2006-04-01	5.3714786
2006-05-01	4.9326836
2006-06-01	4.8955829
2006-07-01	4.3741982
2006-08-01	4.6796487
2006-09-01	4.6963834
2006-10-01	4.3660832
2006-11-01	4.3302867
2006-12-01	4.9267852
2007-01-01	5.3191629
2007-02-01	5.9005635
2007-03-01	5.3476880
2007-04-01	5.0121812
2007-05-01	4.7515727
2007-06-01	4.7209416
2007-07-01	4.4517578
2007-08-01	4.6065383
2007-09-01	4.6986442
2007-10-01	4.4985484
2007-11-01	4.4212435
2007-12-01	4.3992381
2008-01-01	5.1036553
2008-02-01	5.1533038
2008-03-01	4.6584065
2008-04-01	4.7037124
2008-05-01	4.6300438
2008-06-01	4.5233345
2008-07-01	4.5163456
2008-08-01	4.2603666
2008-09-01	4.5972370
2008-10-01	4.3950736
2008-11-01	4.5047869
2008-12-01	4.4783497
2009-01-01	5.1832958
2009-02-01	6.2458903
2009-03-01	6.1927028
2009-04-01	5.5331746
2009-05-01	5.4508146
2009-06-01	5.4366064
2009-07-01	4.9982037
2009-08-01	5.4415694
2009-09-01	5.5918799
2009-10-01	5.2533083
2009-11-01	5.0822374
2009-12-01	5.3594598
2010-01-01	5.7903457
2010-02-01	6.1536046
2010-03-01	5.7947504
2010-04-01	5.7868171
2010-05-01	5.3170007
2010-06-01	5.1737943
2010-07-01	5.2248368
2010-08-01	5.3000727
2010-09-01	5.2801026
2010-10-01	5.3231866
2010-11-01	5.2554640
2010-12-01	5.1925714
2011-01-01	5.8335402
2011-02-01	6.0694704
2011-03-01	5.8679236
2011-04-01	5.2501418
2011-05-01	5.4485709
2011-06-01	5.1401419
2011-07-01	5.0146539
2011-08-01	5.1946521
2011-09-01	5.3663219
2011-10-01	4.9697510
2011-11-01	5.0940092
2011-12-01	5.5148416
2012-01-01	5.7120760
2012-02-01	6.2207636
2012-03-01	5.8752276
2012-04-01	5.3426984
2012-05-01	5.6169746
2012-06-01	5.4456834
2012-07-01	5.0163253
2012-08-01	4.9584329
2012-09-01	5.3074649
2012-10-01	5.3198249
2012-11-01	4.9578428
2012-12-01	5.3968040
2013-01-01	5.8557835
2013-02-01	6.3049906
2013-03-01	6.1223977
2013-04-01	5.8480958
2013-05-01	5.7280921
2013-06-01	5.6078454
2013-07-01	5.3644741
2013-08-01	5.6750009
2013-09-01	5.7445282
2013-10-01	5.4809248
2013-11-01	5.3483592
2013-12-01	5.6358080
2014-01-01	6.5494454
2014-02-01	7.3954437
2014-03-01	6.8017470
2014-04-01	6.0876908
2014-05-01	6.2122641
2014-06-01	6.0073520
2014-07-01	6.0704495
2014-08-01	6.0459506
2014-09-01	6.2271348
2014-10-01	6.2437409
2014-11-01	5.8920177
2014-12-01	6.0594734
2015-01-01	6.8387402
2015-02-01	6.9269214
2015-03-01	6.7970618
2015-04-01	6.3395809
2015-05-01	6.0323228
2015-06-01	5.9824508
2015-07-01	6.4550380
2015-08-01	6.1299380
2015-09-01	5.9777025
2015-10-01	5.7132280
2015-11-01	5.6262249
2015-12-01	5.7164390
2016-01-01	6.5685798
2016-02-01	6.5443821
2016-03-01	6.2718965
2016-04-01	6.0155382
2016-05-01	5.9177693
2016-06-01	5.9958194
2016-07-01	5.8159456
2016-08-01	5.7449678
2016-09-01	5.5691430
2016-10-01	5.4556377
2016-11-01	5.4940880
2016-12-01	5.6728305
2017-01-01	6.3986535
2017-02-01	6.7484974
2017-03-01	6.7026316
2017-04-01	6.2326553
2017-05-01	5.7060635
2017-06-01	5.7006346
2017-07-01	5.5601475
2017-08-01	5.6400189
2017-09-01	5.3686357
2017-10-01	5.3250935
2017-11-01	5.1613572
2017-12-01	5.3194847
2018-01-01	6.2061260
2018-02-01	6.4247189
2018-03-01	6.1808670
2018-04-01	5.8343513
2018-05-01	5.5223999
2018-06-01	5.1559904
2018-07-01	5.2229119
2018-08-01	5.4739226
2018-09-01	5.0759159