Month	Number
1968-01-01	1939
1968-02-01	2508
1968-03-01	3754
1968-04-01	4945
1968-05-01	3205
1968-06-01	4367
1968-07-01	4790
1968-08-01	4488
1968-09-01	4064
1968-10-01	6373
1968-11-01	4480
1968-12-01	2488
1969-01-01	3412
1969-02-01	2603
1969-03-01	5389
1969-04-01	5885
1969-05-01	5453
1969-06-01	5199
1969-07-01	4168
1969-08-01	6348
1969-09-01	5830
1969-10-01	5625
1969-11-01	3791
1969-12-01	2170
1970-01-01	1881
1970-02-01	2150
1970-03-01	4521
1970-04-01	5301
1970-05-01	4312
1970-06-01	5340
1970-07-01	2807
1970-08-01	3904
1970-09-01	4333
1970-10-01	2951
1970-11-01	2595
1970-12-01	2650
1971-01-01	1394
1971-02-01	2199
1971-03-01	3868
1971-04-01	3945
1971-05-01	4305
1971-06-01	4432
1971-07-01	3023
1971-08-01	4382
1971-09-01	4320
1971-10-01	3387
1971-11-01	3706
1971-12-01	2879
1972-01-01	3649
1972-02-01	3191
1972-03-01	4668
1972-04-01	6569
1972-05-01	4084
1972-06-01	4192
1972-07-01	3329
1972-08-01	4184
1972-09-01	4565
1972-10-01	5272
1972-11-01	5446
1972-12-01	2767
1973-01-01	4930
1973-02-01	3507
1973-03-01	6092
1973-04-01	6755
1973-05-01	7095
1973-06-01	5353
1973-07-01	2858
1973-08-01	5530
1973-09-01	6326
1973-10-01	4904
1973-11-01	5154
1973-12-01	3226
1974-01-01	3198
1974-02-01	5366
1974-03-01	5975
1974-04-01	7996
1974-05-01	8020
1974-06-01	5506
1974-07-01	4565
1974-08-01	6636
1974-09-01	5620
1974-10-01	4572
1974-11-01	4208
1974-12-01	3627
1975-01-01	5018
1975-02-01	6840
1975-03-01	9261
1975-04-01	9506
1975-05-01	7708
1975-06-01	6720
1975-07-01	4809
1975-08-01	5275
1975-09-01	6863
1975-10-01	5940
1975-11-01	5091
1975-12-01	4902
1976-01-01	4819
1976-02-01	6006
1976-03-01	6693
1976-04-01	7893
1976-05-01	9158
1976-06-01	6934
1976-07-01	4663
1976-08-01	5470
1976-09-01	7199
1976-10-01	6957
1976-11-01	6671
1976-12-01	3720
1977-01-01	4075
1977-02-01	6291
1977-03-01	5635
1977-04-01	6011
1977-05-01	5963
1977-06-01	6283
1977-07-01	4310
1977-08-01	7672
1977-09-01	8057
1977-10-01	6565
1977-11-01	5462
1977-12-01	6061
1978-01-01	6313
1978-02-01	6337
1978-03-01	7067
1978-04-01	6231
1978-05-01	6120
1978-06-01	6250
1978-07-01	3843
1978-08-01	5650
1978-09-01	6028
1978-10-01	4780
1978-11-01	4155
1978-12-01	3136
1979-01-01	1346
1979-02-01	4147
1979-03-01	6534
1979-04-01	6813
1979-05-01	5625
1979-06-01	7877
1979-07-01	4779
1979-08-01	7069
1979-09-01	7192
1979-10-01	8705
1979-11-01	4717
1979-12-01	3603
1980-01-01	3726
1980-02-01	4649
1980-03-01	7418
1980-04-01	5911
1980-05-01	5669
1980-06-01	4331
1980-07-01	2209
1980-08-01	4533
1980-09-01	4976
1980-10-01	3686
1980-11-01	2123
1980-12-01	1627
1981-01-01	1274
1981-02-01	2390
1981-03-01	3642
1981-04-01	4269
1981-05-01	3481
1981-06-01	3121
1981-07-01	1611
1981-08-01	3455
1981-09-01	3137
1981-10-01	2683
1981-11-01	1464
1981-12-01	1096
1982-01-01	961
1982-02-01	1717
1982-03-01	3111
1982-04-01	2779
1982-05-01	3122
1982-06-01	3153
1982-07-01	1413
1982-08-01	2573
1982-09-01	2486
1982-10-01	1890
1982-11-01	1239
1982-12-01	1148
1983-01-01	854
1983-02-01	1182
1983-03-01	2484
1983-04-01	2294
1983-05-01	2288
1983-06-01	2497
1983-07-01	1282
1983-08-01	2262
1983-09-01	2318
1983-10-01	1985
1983-11-01	1492
1983-12-01	732
1984-01-01	1050
1984-02-01	1211
1984-03-01	2419
1984-04-01	2632
1984-05-01	2634
1984-06-01	2315
1984-07-01	1567
1984-08-01	2681
1984-09-01	2654
1984-10-01	2369
1984-11-01	1527
1984-12-01	1275
1985-01-01	769
1985-02-01	1355
1985-03-01	3439
1985-04-01	3934
1985-05-01	3043
1985-06-01	3069
1985-07-01	1832
1985-08-01	2825
1985-09-01	3283
1985-10-01	2816
1985-11-01	1613
1985-12-01	1294
1986-01-01	1135
1986-02-01	1026
1986-03-01	2749
1986-04-01	2899
1986-05-01	2843
1986-06-01	3075
1986-07-01	1882
1986-08-01	2287
1986-09-01	2842
1986-10-01	2211
1986-11-01	1807
1986-12-01	1350
1987-01-01	1021
1987-02-01	1538
1987-03-01	2789
1987-04-01	3602
1987-05-01	3453
1987-06-01	3123
1987-07-01	1763
1987-08-01	3479
1987-09-01	3697
1987-10-01	2968
1987-11-01	2378
1987-12-01	1560
1988-01-01	1950
1988-02-01	2463
1988-03-01	3614
1988-04-01	4247
1988-05-01	3873
1988-06-01	4034
1988-07-01	2144
1988-08-01	4041
1988-09-01	4553
1988-10-01	3868
1988-11-01	2655
1988-12-01	2263
1989-01-01	2827
1989-02-01	3426
1989-03-01	4351
1989-04-01	4054
1989-05-01	4396
1989-06-01	4660
1989-07-01	2519
1989-08-01	4245
1989-09-01	5025
1989-10-01	4024
1989-11-01	3326
1989-12-01	2665
1990-01-01	3017
1990-02-01	3616
1990-03-01	5240
1990-04-01	4897
1990-05-01	4595
1990-06-01	4140
1990-07-01	2376
1990-08-01	4257
1990-09-01	4112
1990-10-01	3885
1990-11-01	2937
1990-12-01	2462
1991-01-01	2786
1991-02-01	1991
1991-03-01	4389
1991-04-01	4078
1991-05-01	3979
1991-06-01	3652
1991-07-01	2235
1991-08-01	3822
1991-09-01	4330
1991-10-01	3740
1991-11-01	2372
1991-12-01	2710
1992-01-01	2676
1992-02-01	3107
1992-03-01	4793
1992-04-01	4539
1992-05-01	4191
1992-06-01	4194
1992-07-01	2380
1992-08-01	3878
1992-09-01	4560
1992-10-01	3569
1992-11-01	3007
1992-12-01	1889
1993-01-01	2706
1993-02-01	3349
1993-03-01	5024
1993-04-01	4366
1993-05-01	3942
1993-06-01	4356
1993-07-01	2220
1993-08-01	4411
1993-09-01	5576
1993-10-01	4542
1993-11-01	2431
1993-12-01	2717
1994-01-01	2415
1994-02-01	2978
1994-03-01	5038
1994-04-01	4748
1994-05-01	4538
1994-06-01	4631
1994-07-01	2761
1994-08-01	4483
1994-09-01	5166
1994-10-01	5119
1994-11-01	3925
1994-12-01	3424
1995-01-01	3091
1995-02-01	3817
1995-03-01	4952
1995-04-01	5039
1995-05-01	5193
1995-06-01	4636
1995-07-01	2176
1995-08-01	3931
1995-09-01	4114
1995-10-01	3817
1995-11-01	2900
1995-12-01	2527
1996-01-01	2497
1996-02-01	2519
1996-03-01	4911
1996-04-01	4320
1996-05-01	3857
1996-06-01	3834
1996-07-01	2789
1996-08-01	4230
1996-09-01	5308
1996-10-01	4419
1996-11-01	3654
1996-12-01	2783
1997-01-01	2179
1997-02-01	4155
1997-03-01	4562
1997-04-01	4857
1997-05-01	3878
1997-06-01	4258
1997-07-01	2273
1997-08-01	4305
1997-09-01	4583
1997-10-01	4345
1997-11-01	4013
1997-12-01	4052
1998-01-01	3033
1998-02-01	3568
1998-03-01	4392
1998-04-01	3802
1998-05-01	3662
1998-06-01	3776
1998-07-01	2204
1998-08-01	3773
1998-09-01	4337
1998-10-01	3180
1998-11-01	2627
1998-12-01	2210
1999-01-01	2576
1999-02-01	2739
1999-03-01	4185
1999-04-01	3828
1999-05-01	3435
1999-06-01	4214
1999-07-01	2092
1999-08-01	4394
1999-09-01	4323
1999-10-01	3513
1999-11-01	3086
1999-12-01	3164
2000-01-01	2561
2000-02-01	3865
2000-03-01	4126
2000-04-01	4046
2000-05-01	4116
2000-06-01	3239
2000-07-01	2116
2000-08-01	3429
2000-09-01	3919
2000-10-01	3884
2000-11-01	3079
2000-12-01	2160
2001-01-01	2464
2001-02-01	3494
2001-03-01	4169
2001-04-01	8206
2001-05-01	2997
2001-06-01	2981
2001-07-01	1959
2001-08-01	3194
2001-09-01	3433
2001-10-01	3341
2001-11-01	3133
2001-12-01	2389
2002-01-01	2571
2002-02-01	2726
2002-03-01	3441
2002-04-01	3479
2002-05-01	3589
2002-06-01	3474
2002-07-01	2307
2002-08-01	3316
2002-09-01	4345
2002-10-01	3599
2002-11-01	2693
2002-12-01	2633
2003-01-01	2917
2003-02-01	3180
2003-03-01	4164
2003-04-01	4017
2003-05-01	3424
2003-06-01	3871
2003-07-01	2616
2003-08-01	3594
2003-09-01	5255
2003-10-01	3827
2003-11-01	3437
2003-12-01	3226
2004-01-01	3396
2004-02-01	3970
2004-03-01	4624
2004-04-01	4483
2004-05-01	4130
2004-06-01	4681
2004-07-01	3167
2004-08-01	4277
2004-09-01	4201
2004-10-01	4153
2004-11-01	3936
2004-12-01	3146
2005-01-01	3618
2005-02-01	4207
2005-03-01	4425
2005-04-01	4793
2005-05-01	4847
2005-06-01	5016
2005-07-01	3507
2005-08-01	4635
2005-09-01	5385
2005-10-01	5149
2005-11-01	4846
2005-12-01	3987
2006-01-01	4486
2006-02-01	4678
2006-03-01	5458
2006-04-01	4752
2006-05-01	5299
2006-06-01	5059
2006-07-01	3484
2006-08-01	4943
2006-09-01	5156
2006-10-01	5417
2006-11-01	5174
2006-12-01	4026
2007-01-01	4447
2007-02-01	4606
2007-03-01	4600
2007-04-01	4902
2007-05-01	5234
2007-06-01	4660
2007-07-01	3470
2007-08-01	4557
2007-09-01	4810
2007-10-01	4967
2007-11-01	4485
2007-12-01	3844
2008-01-01	3694
2008-02-01	4741
2008-03-01	4573
2008-04-01	4508
2008-05-01	4622
2008-06-01	4860
2008-07-01	3313
2008-08-01	4016
2008-09-01	4662
2008-10-01	4172
2008-11-01	3981
2008-12-01	3586
2009-01-01	4209
2009-02-01	3670
2009-03-01	4051
2009-04-01	4240
2009-05-01	3707
2009-06-01	3598
2009-07-01	2893
2009-08-01	4024
2009-09-01	3903
2009-10-01	4160
2009-11-01	3618
2009-12-01	3241
2010-01-01	3641
2010-02-01	3461
2010-03-01	3799
2010-04-01	4132
2010-05-01	4415
2010-06-01	4865
2010-07-01	3801
2010-08-01	5219
2010-09-01	4432
2010-10-01	4170
2010-11-01	3255
2010-12-01	2904
2011-01-01	3099
2011-02-01	3042
2011-03-01	3564
2011-04-01	3792
2011-05-01	3558
2011-06-01	3724
2011-07-01	2517
2011-08-01	3566
2011-09-01	3799
2011-10-01	4124
2011-11-01	3489
2011-12-01	3225
2012-01-01	3856
2012-02-01	3924
2012-03-01	4464
2012-04-01	4577
2012-05-01	4149
2012-06-01	3908
2012-07-01	3209
2012-08-01	3732
2012-09-01	3740
2012-10-01	3668
2012-11-01	3497
2012-12-01	2756
2013-01-01	3531
2013-02-01	2948
2013-03-01	3947
2013-04-01	4062
2013-05-01	3982
2013-06-01	3718
2013-07-01	3289
2013-08-01	3698
2013-09-01	4435
2013-10-01	3977
2013-11-01	3998
2013-12-01	3112
2014-01-01	4163
2014-02-01	4092
2014-03-01	4743
2014-04-01	5297
2014-05-01	5911
2014-06-01	5251
2014-07-01	3562
2014-08-01	4654
2014-09-01	4243
2014-10-01	4019
2014-11-01	3448
2014-12-01	3221
2015-01-01	3670
2015-02-01	3507
2015-03-01	3986
2015-04-01	3750
2015-05-01	3664
2015-06-01	3598
2015-07-01	2770
2015-08-01	4126
2015-09-01	4432
2015-10-01	4374
2015-11-01	4041
2015-12-01	4213