*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000237237
Feb0086081167
Mar211199001202
Apr261519001527
May1582117002140
Jun80363147003263
Jul1461614001634
Aug311103001107
Sep2095700959
Oct0090700907
Nov0050000500
Dec00930277370
Total1185813242059514013