*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003240243
Feb10103073177
Mar6161500622
Apr091178001187
May61071286001399
Jun2472932001028
Jul15531000330
Aug7222100230
Sep0025500255
Oct0034600346
Nov0022700227
Dec00520228280
Total59196552535416324