*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003360856118
Feb552819442021954242
Mar529734173004775
Apr862962926003884
May692703423004185
Jun480803196003756
Jul200282978003206
Aug6942321002394
Sep1031754001767
Oct222064002068
Nov212470002473
Dec101550637825339
Total290238528799591206244207