*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008682690
Feb002060248454
Mar0229500297
Apr0847300481
May03290351003641
Jun46008553006565
Jul610692746003821
Aug13582326002397
Sep831338001349
Oct2041200414
Nov0038500385
Dec0018309511134
Total331043892688188121628