*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004410414
Feb001291172302
Mar0433600340
Apr4221142001168
May3561291262007426
Jun58975672940017108
Jul4114604725006226
Aug14383233003285
Sep221760001764
Oct0026800268
Nov0012800128
Dec00761547624
Total15417411203536112939053