*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0013360616095
Feb853120332021884357
Mar662814195004938
Apr9831032945004031
May852813450004383
Jun594993222003915
Jul220332981003234
Aug74142353002441
Sep1031785001798
Oct232098002103
Nov222518002522
Dec101569637685344
Total348545029150591201745161