*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007440447
Feb011460133280
Mar2959700608
Apr333993001029
May142362900666
Jun352035100406
Jul24616800198
Aug5021100216
Sep1024300244
Oct0040700407
Nov0040100401
Dec001050418523
Total8492425179915425