*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002420402064
Feb0967357731460
Mar0281351001379
Apr8431395001446
May162564220002800
Jun222459237002718
Jul182611091001370
Aug54997001006
Sep1292200925
Oct0187100872
Nov0078500785
Dec00500519822487
Total705371904234479519312