*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000022
Feb00250328
Mar111311378001520
Apr283461981002355
May1133293336003742
Jun1986149374006721
Jul1228811776002779
Aug271177700815
Sep3284100846
Oct0033700337
Nov00120012
Dec000099
Total50210813783701419166