*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000434434
Feb001880177365
Mar0262600628
Apr01276800780
May63479800838
Jun331941200464
Jul42723200281
Aug20013100151
Sep10820083
Oct0016400164
Nov0027400274
Dec001291623753
Total102743804112345215