*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004397401
Feb001194158281
Mar03726700304
Apr744448200933
May1245231800782
Jun4252640800976
Jul456625900370
Aug14933000353
Sep3337600382
Oct0533900344
Nov0233200334
Dec001050529634
Total12315443335810846094