*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004523572402
Feb0781967641596
Mar2991901002002
Apr104102735003155
May2142581575005854
Jun6657883758009612
Jul6711184614005799
Aug7331832001872
Sep381819001830
Oct101211001212
Nov0082500825
Dec00428315291960
Total177117212151754465038119