Month	Number
1968-01-01	3515
1968-02-01	3023
1968-03-01	9009
1968-04-01	4088
1968-05-01	7810
1968-06-01	5820
1968-07-01	5975
1968-08-01	5081
1968-09-01	3736
1968-10-01	5438
1968-11-01	5200
1968-12-01	5237
1969-01-01	4890
1969-02-01	6003
1969-03-01	6455
1969-04-01	6830
1969-05-01	6379
1969-06-01	7007
1969-07-01	8106
1969-08-01	5659
1969-09-01	5891
1969-10-01	5970
1969-11-01	4272
1969-12-01	5684
1970-01-01	4111
1970-02-01	5005
1970-03-01	5111
1970-04-01	6644
1970-05-01	5503
1970-06-01	5270
1970-07-01	6603
1970-08-01	5219
1970-09-01	4965
1970-10-01	4421
1970-11-01	3598
1970-12-01	3975
1971-01-01	4212
1971-02-01	3648
1971-03-01	4209
1971-04-01	3491
1971-05-01	2636
1971-06-01	4392
1971-07-01	3275
1971-08-01	5445
1971-09-01	3063
1971-10-01	3910
1971-11-01	3598
1971-12-01	4812
1972-01-01	4210
1972-02-01	5353
1972-03-01	6129
1972-04-01	7032
1972-05-01	5732
1972-06-01	6472
1972-07-01	5227
1972-08-01	5547
1972-09-01	5450
1972-10-01	7778
1972-11-01	7744
1972-12-01	7220
1973-01-01	5809
1973-02-01	7172
1973-03-01	7502
1973-04-01	6698
1973-05-01	8189
1973-06-01	6701
1973-07-01	6401
1973-08-01	6495
1973-09-01	7667
1973-10-01	6606
1973-11-01	5970
1973-12-01	4622
1974-01-01	7135
1974-02-01	7444
1974-03-01	7635
1974-04-01	9256
1974-05-01	9876
1974-06-01	7501
1974-07-01	9883
1974-08-01	6904
1974-09-01	7431
1974-10-01	5436
1974-11-01	5023
1974-12-01	4677
1975-01-01	5224
1975-02-01	6332
1975-03-01	6174
1975-04-01	7192
1975-05-01	5823
1975-06-01	6614
1975-07-01	5432
1975-08-01	5598
1975-09-01	7176
1975-10-01	5994
1975-11-01	6635
1975-12-01	7288
1976-01-01	7233
1976-02-01	8637
1976-03-01	8654
1976-04-01	8064
1976-05-01	8857
1976-06-01	8374
1976-07-01	6366
1976-08-01	7861
1976-09-01	7662
1976-10-01	7590
1976-11-01	6598
1976-12-01	8817
1977-01-01	4744
1977-02-01	5790
1977-03-01	6920
1977-04-01	8317
1977-05-01	6682
1977-06-01	7646
1977-07-01	6686
1977-08-01	6325
1977-09-01	5941
1977-10-01	5550
1977-11-01	6468
1977-12-01	5752
1978-01-01	6148
1978-02-01	7296
1978-03-01	7849
1978-04-01	6405
1978-05-01	6796
1978-06-01	6769
1978-07-01	5846
1978-08-01	6366
1978-09-01	5340
1978-10-01	5505
1978-11-01	5120
1978-12-01	5443
1979-01-01	4857
1979-02-01	6102
1979-03-01	6275
1979-04-01	5612
1979-05-01	5102
1979-06-01	5288
1979-07-01	5924
1979-08-01	4497
1979-09-01	4182
1979-10-01	6386
1979-11-01	3745
1979-12-01	4111
1980-01-01	5235
1980-02-01	4804
1980-03-01	5713
1980-04-01	4853
1980-05-01	3996
1980-06-01	4927
1980-07-01	4372
1980-08-01	3693
1980-09-01	3670
1980-10-01	2648
1980-11-01	3467
1980-12-01	3293
1981-01-01	3039
1981-02-01	3273
1981-03-01	3567
1981-04-01	3001
1981-05-01	3003
1981-06-01	2822
1981-07-01	3178
1981-08-01	2814
1981-09-01	2267
1981-10-01	2587
1981-11-01	2706
1981-12-01	2366
1982-01-01	2429
1982-02-01	2497
1982-03-01	2631
1982-04-01	2366
1982-05-01	2375
1982-06-01	2952
1982-07-01	1753
1982-08-01	1940
1982-09-01	2180
1982-10-01	2098
1982-11-01	1933
1982-12-01	1914
1983-01-01	1878
1983-02-01	1801
1983-03-01	2003
1983-04-01	2469
1983-05-01	2243
1983-06-01	1892
1983-07-01	1894
1983-08-01	1713
1983-09-01	1491
1983-10-01	1992
1983-11-01	1790
1983-12-01	1844
1984-01-01	2257
1984-02-01	2250
1984-03-01	2403
1984-04-01	2477
1984-05-01	2389
1984-06-01	2540
1984-07-01	2749
1984-08-01	1990
1984-09-01	2212
1984-10-01	2245
1984-11-01	1705
1984-12-01	2388
1985-01-01	2159
1985-02-01	2433
1985-03-01	3034
1985-04-01	2981
1985-05-01	2748
1985-06-01	2906
1985-07-01	2597
1985-08-01	2448
1985-09-01	2325
1985-10-01	2319
1985-11-01	1730
1985-12-01	2537
1986-01-01	2171
1986-02-01	2499
1986-03-01	2203
1986-04-01	2653
1986-05-01	2146
1986-06-01	3791
1986-07-01	2748
1986-08-01	2040
1986-09-01	2457
1986-10-01	2193
1986-11-01	2112
1986-12-01	2552
1987-01-01	2489
1987-02-01	2679
1987-03-01	3589
1987-04-01	3398
1987-05-01	3343
1987-06-01	3125
1987-07-01	2746
1987-08-01	3268
1987-09-01	3606
1987-10-01	2833
1987-11-01	2780
1987-12-01	3468
1988-01-01	2980
1988-02-01	3520
1988-03-01	4089
1988-04-01	3767
1988-05-01	3871
1988-06-01	4054
1988-07-01	3182
1988-08-01	3655
1988-09-01	4088
1988-10-01	3727
1988-11-01	3938
1988-12-01	4189
1989-01-01	3699
1989-02-01	3686
1989-03-01	3922
1989-04-01	4511
1989-05-01	4516
1989-06-01	4762
1989-07-01	4524
1989-08-01	3929
1989-09-01	3943
1989-10-01	4093
1989-11-01	3509
1989-12-01	4715
1990-01-01	4583
1990-02-01	4977
1990-03-01	4990
1990-04-01	4471
1990-05-01	4266
1990-06-01	4299
1990-07-01	3921
1990-08-01	3740
1990-09-01	3740
1990-10-01	4332
1990-11-01	3645
1990-12-01	3892
1991-01-01	3813
1991-02-01	3756
1991-03-01	3572
1991-04-01	3957
1991-05-01	4427
1991-06-01	4337
1991-07-01	3707
1991-08-01	3094
1991-09-01	4148
1991-10-01	4275
1991-11-01	3420
1991-12-01	3777
1992-01-01	3509
1992-02-01	4748
1992-03-01	5381
1992-04-01	4217
1992-05-01	4007
1992-06-01	4780
1992-07-01	3964
1992-08-01	3662
1992-09-01	3911
1992-10-01	4425
1992-11-01	3339
1992-12-01	4101
1993-01-01	3585
1993-02-01	4100
1993-03-01	5775
1993-04-01	3949
1993-05-01	4235
1993-06-01	7112
1993-07-01	4043
1993-08-01	4691
1993-09-01	4716
1993-10-01	4843
1993-11-01	4050
1993-12-01	4283
1994-01-01	3958
1994-02-01	5202
1994-03-01	5380
1994-04-01	4404
1994-05-01	4815
1994-06-01	5483
1994-07-01	3868
1994-08-01	5688
1994-09-01	4650
1994-10-01	4289
1994-11-01	3479
1994-12-01	4407
1995-01-01	3635
1995-02-01	4182
1995-03-01	4388
1995-04-01	3404
1995-05-01	3943
1995-06-01	4087
1995-07-01	3362
1995-08-01	3030
1995-09-01	3449
1995-10-01	3817
1995-11-01	3311
1995-12-01	3371
1996-01-01	3222
1996-02-01	3454
1996-03-01	4525
1996-04-01	4186
1996-05-01	4753
1996-06-01	5022
1996-07-01	4939
1996-08-01	3542
1996-09-01	4062
1996-10-01	3735
1996-11-01	3335
1996-12-01	3749
1997-01-01	3009
1997-02-01	3153
1997-03-01	3818
1997-04-01	4315
1997-05-01	3350
1997-06-01	4404
1997-07-01	4191
1997-08-01	3458
1997-09-01	4788
1997-10-01	4168
1997-11-01	3890
1997-12-01	7650
1998-01-01	1792
1998-02-01	2306
1998-03-01	3689
1998-04-01	3350
1998-05-01	3123
1998-06-01	4381
1998-07-01	3616
1998-08-01	3537
1998-09-01	3507
1998-10-01	2863
1998-11-01	2688
1998-12-01	3041
1999-01-01	3119
1999-02-01	3102
1999-03-01	4608
1999-04-01	3466
1999-05-01	3748
1999-06-01	4541
1999-07-01	3650
1999-08-01	4274
1999-09-01	3827
1999-10-01	3778
1999-11-01	3453
1999-12-01	4160
2000-01-01	3595
2000-02-01	3914
2000-03-01	4159
2000-04-01	3676
2000-05-01	3794
2000-06-01	3446
2000-07-01	3504
2000-08-01	3958
2000-09-01	3353
2000-10-01	3480
2000-11-01	3097
2000-12-01	2937
2001-01-01	3389
2001-02-01	3497
2001-03-01	4404
2001-04-01	3849
2001-05-01	3734
2001-06-01	3060
2001-07-01	3507
2001-08-01	3287
2001-09-01	3215
2001-10-01	3764
2001-11-01	2734
2001-12-01	2837
2002-01-01	2766
2002-02-01	3851
2002-03-01	3289
2002-04-01	3848
2002-05-01	3348
2002-06-01	3682
2002-07-01	4058
2002-08-01	3655
2002-09-01	3811
2002-10-01	3341
2002-11-01	3032
2002-12-01	3475
2003-01-01	3353
2003-02-01	3186
2003-03-01	3902
2003-04-01	4164
2003-05-01	3499
2003-06-01	4145
2003-07-01	3796
2003-08-01	3711
2003-09-01	3949
2003-10-01	3740
2003-11-01	3244
2003-12-01	4407
2004-01-01	4814
2004-02-01	3908
2004-03-01	5250
2004-04-01	3937
2004-05-01	4004
2004-06-01	5560
2004-07-01	3922
2004-08-01	3759
2004-09-01	4138
2004-10-01	4634
2004-11-01	3996
2004-12-01	4308
2005-01-01	4143
2005-02-01	4429
2005-03-01	5219
2005-04-01	4929
2005-05-01	5761
2005-06-01	5592
2005-07-01	4163
2005-08-01	4962
2005-09-01	5208
2005-10-01	4755
2005-11-01	4491
2005-12-01	5732
2006-01-01	5731
2006-02-01	5040
2006-03-01	6102
2006-04-01	4904
2006-05-01	5369
2006-06-01	5578
2006-07-01	4619
2006-08-01	4731
2006-09-01	5012
2006-10-01	5229
2006-11-01	4207
2006-12-01	4636
2007-01-01	4741
2007-02-01	4220
2007-03-01	5123
2007-04-01	4214
2007-05-01	4149
2007-06-01	5104
2007-07-01	4301
2007-08-01	4595
2007-09-01	3833
2007-10-01	5700
2007-11-01	4250
2007-12-01	3866
2008-01-01	4746
2008-02-01	4903
2008-03-01	4421
2008-04-01	4575
2008-05-01	4111
2008-06-01	4982
2008-07-01	4008
2008-08-01	3830
2008-09-01	4471
2008-10-01	4034
2008-11-01	4135
2008-12-01	4890
2009-01-01	3243
2009-02-01	3581
2009-03-01	4007
2009-04-01	3984
2009-05-01	3709
2009-06-01	4319
2009-07-01	3972
2009-08-01	4142
2009-09-01	4209
2009-10-01	3842
2009-11-01	3391
2009-12-01	3468
2010-01-01	3554
2010-02-01	4033
2010-03-01	5511
2010-04-01	5251
2010-05-01	5585
2010-06-01	6508
2010-07-01	5019
2010-08-01	2987
2010-09-01	2994
2010-10-01	3185
2010-11-01	2745
2010-12-01	3173
2011-01-01	3146
2011-02-01	3178
2011-03-01	3724
2011-04-01	3224
2011-05-01	4114
2011-06-01	3450
2011-07-01	2957
2011-08-01	3883
2011-09-01	4285
2011-10-01	4181
2011-11-01	3761
2011-12-01	4457
2012-01-01	4167
2012-02-01	3962
2012-03-01	5247
2012-04-01	5157
2012-05-01	3697
2012-06-01	3514
2012-07-01	3786
2012-08-01	3297
2012-09-01	3572
2012-10-01	3871
2012-11-01	3492
2012-12-01	3051
2013-01-01	3735
2013-02-01	3645
2013-03-01	4852
2013-04-01	4232
2013-05-01	3830
2013-06-01	4465
2013-07-01	4259
2013-08-01	3373
2013-09-01	4134
2013-10-01	4495
2013-11-01	3333
2013-12-01	4788
2014-01-01	4966
2014-02-01	5565
2014-03-01	7237
2014-04-01	9266
2014-05-01	4007
2014-06-01	3052
2014-07-01	3479
2014-08-01	3273
2014-09-01	3977
2014-10-01	3223
2014-11-01	3252
2014-12-01	3606
2015-01-01	3431
2015-02-01	2691
2015-03-01	4672
2015-04-01	3954
2015-05-01	3590
2015-06-01	4536
2015-07-01	3491
2015-08-01	4367
2015-09-01	4328
2015-10-01	4426
2015-11-01	3561
2015-12-01	3134
2016-01-01	3747
2016-02-01	5316
2016-03-01	6424
2016-04-01	7716
2016-05-01	4871
2016-06-01	3030
2016-07-01	2857
2016-08-01	4043
2016-09-01	3798
2016-10-01	3560
2016-11-01	2662
2016-12-01	3504
2017-01-01	3909
2017-02-01	3395
2017-03-01	4666
2017-04-01	3643
2017-05-01	4868
2017-06-01	5071
2017-07-01	2794
2017-08-01	2767
2017-09-01	4613
2017-10-01	5834
2017-11-01	4230
2017-12-01	4624