*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00125356
Feb201701130
Mar5123800244
Apr11443001446
May913146700607
Jun3416359300790
Jul341413700185
Aug102780090
Sep1020000201
Oct0017300173
Nov0011000110
Dec00340269303
Total96325247823343235