*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00012827839
Feb003150281596
Mar1131134001148
Apr3501682001735
May31631816001910
Jun1411121494001747
Jul170181074001262
Aug681277900859
Sep16469700717
Oct3055700560
Nov1040100402
Dec0016919511121
Total4342721011813205912896