*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004523572402
Feb0781967641596
Mar2991901002002
Apr104102735003155
May2142581574005853
Jun6657883753009607
Jul6811174603005788
Aug7331825001865
Sep381819001830
Oct101211001212
Nov0082500825
Dec00428315291960
Total178117202149354465038095