*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002012821302
Feb004624531997
Mar1572600732
Apr01774800765
May81289286001583
Jun361136443001615
Jul24133985001142
Aug7376700777
Sep0069600696
Oct0147700478
Nov0149700498
Dec00271315661840
Total762585635827337912425