*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000237237
Feb0086081167
Mar211199001202
Apr261519001527
May1582117002140
Jun80363146003262
Jul1461614001634
Aug311100001104
Sep2095200954
Oct0090700907
Nov0050000500
Dec00930277370
Total1185813233059514004