*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005221226
Feb0074053127
Mar5147600482
Apr361322001331
May5991462001566
Jun32901367001489
Jul564336500464
Aug18921600243
Sep1026400265
Oct0045700457
Nov0025000250
Dec00570263320
Total120248631055377220