*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006403409
Feb001700148318
Mar01388900902
Apr0212785002806
May81183853003979
Jun702112907003188
Jul991983600954
Aug27379200822
Sep2299100995
Oct001262001262
Nov0063300633
Dec001590437596
Total20638715277698816864