*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008750758
Feb301831238425
Mar1427500280
Apr141334700374
May20829900327
Jun754026800383
Jul681322700308
Aug4831200324
Sep2082400826
Oct0149100492
Nov0025500255
Dec001690667836
Total187873650916555588