*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003360856118
Feb552819422021934238
Mar529734171004773
Apr835952918003848
May690693419004178
Jun479803196003755
Jul200282978003206
Aug6942321002394
Sep1031754001767
Oct222064002068
Nov212470002473
Dec101550637815338
Total287238328783591205944156