*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008682690
Feb002060248454
Mar0229500297
Apr0847100479
May03290349003639
Jun46008546006558
Jul610692745003820
Aug13582326002397
Sep831336001347
Oct2041200414
Nov0038500385
Dec0018309511134
Total331043892548188121614