*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00012232943416
Feb01712823513082642
Mar3462947002996
Apr8503362003420
May8574591004656
Jun6523112003170
Jul7312605002643
Aug2173018003037
Sep242759002765
Oct012091002092
Nov002104002104
Dec0010549215962742
Total3627528925249619835683