*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006637643
Feb011761195373
Mar2733900348
Apr16672275002358
May341383809003981
Jun623444271004677
Jul931212273002487
Aug23181541001582
Sep2111345001358
Oct0035700357
Nov0023900239
Dec001801695876
Total232707168058152719279