*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006632638
Feb011751193370
Mar2733900348
Apr16632270002349
May341383800003972
Jun603434259004662
Jul921212267002480
Aug23181536001577
Sep2111343001356
Oct0035700357
Nov0023600236
Dec001771695873
Total229702167598152019218