*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000773773
Feb101721209383
Mar872955800674
Apr194511600001845
May230282799003057
Jun183613442003686
Jul96262339002461
Aug19131854001886
Sep021142001144
Oct0036900369
Nov0025400254
Dec0015408681022
Total810210146831185017554