*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001719111928
Feb0275926791442
Mar0212224002245
Apr0261775001801
May186270100781
Jun832050900612
Jul80747300560
Aug18235500375
Sep1023500236
Oct0024000240
Nov0088100881
Dec00474017672241
Total200140862619435713342