*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007440447
Feb011460133280
Mar2959700608
Apr133996001030
May132363000666
Jun342035200406
Jul24617100201
Aug5021500220
Sep1024300244
Oct0040700407
Nov0040100401
Dec001050418523
Total8092426379915433