*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00013871884
Feb012320289522
Mar02181500836
Apr3532293002349
May151013216003332
Jun222923917004231
Jul17731698001788
Aug981351001368
Sep371664001674
Oct111143001145
Nov0062900629
Dec00319211401461
Total705571727715230020219