*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003682685
Feb032220243468
Mar0863100639
Apr1401793001834
May5511329001385
Jun463166000737
Jul38326100302
Aug6021800224
Sep2026900271
Oct0063700637
Nov0059900599
Dec001790759938
Total981366798316848719