*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000088
Feb001045
Mar008008
Apr07312600199
May1994137450010177
Jun501927012900020610
Jul5522342376004665
Aug19349400516
Sep149500100
Oct00220022
Nov006006
Dec00102728
Total14430997516403936344