*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001469470
Feb011420164307
Mar0659500601
Apr1351065001101
May142574000779
Jun402038700447
Jul31720100239
Aug5028400289
Sep1029700298
Oct0046000460
Nov0054300543
Dec001290496625
Total92944843111296159