*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00013871884
Feb012330289523
Mar02181700838
Apr3532298002354
May151073224003346
Jun222943920004236
Jul17731699001789
Aug981353001370
Sep371664001674
Oct111146001148
Nov0062900629
Dec00319211401461
Total705651730215230020252