*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00115145161
Feb00102149152
Mar1421100216
Apr31532300341
May2542452100970
Jun492823686003558
Jul1639425800668
Aug1420900214
Sep0822900237
Oct0116500166
Nov00710071
Dec00662742810
Total9536732842189367564